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+<!--- # The Data Engineering Cookbook -->
+
+<div align="center">
+	<img width="341" height="426" src="images/CookbookCover.jpg" alt="Data Engineering Cookbook">
+	<br>
+	<br>
+	<br>
+</div>
+
+<p align="center">
+	<a href="sections/01-Introduction.md">What is this Book?</a>&nbsp;&nbsp;&nbsp;
+  <a href="#how-to-contribute">How to Contribute</a>&nbsp;&nbsp;&nbsp;
+  <a href="https://www.youtube.com/channel/UCY8mzqqGwl5_bTpBY9qLMAA">YouTube</a>&nbsp;&nbsp;&nbsp;
+	<a
+  <a href="https://twitter.com/andreaskayy">Twitter</a>&nbsp;&nbsp;&nbsp;
+  <a href="https://www.amazon.com/shop/plumbersofdatascience">Amazon Shop</a>
+</p>
+
+<br>
+
+## If You Like This Book & Need More Help
+Check out my Data Engineering Academy at LearnDataEngineering.com trusted by almost 2,000 students!
+
+**Visit learndataengineering.com:** [Click Here](https://learndataengineering.com)
+
+- Learn Data Engineering with our online Academy
+- Perfect for becoming a Data Engineer or add Data Engineering to your skillset
+- Proven process based on years of experience and hundreds of hours of personal coaching
+- Over 30 prepared courses on the most important techniques, fundamental tools and platforms plus our
+- Associate Data Engineer Certification
+- Academy Discord server with over 1,000 members
+
+
+
+## Support This Book For Free!
+- **Amazon:** [Click Here](https://www.amazon.com/shop/plumbersofdatascience) buy whatever you like from Amazon using this link* (Also check out my complete podcast gear and books)
+
+<!---
+I get asked super often how to become a Data Engineer.
+That's why I decided to start this cookbook with all the topics you need to look into.
+
+It's not only useful for beginners, professionals will definitely like the case study section.
+
+If you look for the old PDF version it's [here](https://github.com/andkret/Cookbook/raw/LaTex-Version-Deprecated/Data%20Engineering%20Cookbook.pdf)
+
+-->
+
+## Here's what's new:
+Find the change log with all recent updates here: [SEE UPDATES](sections/10-Updates.md)
+
+# Contents:
+- [Introduction](sections/01-Introduction.md)
+- [Basic Engineering Skills](sections/02-BasicSkills.md)
+- [Advanced Engineering Skills](sections/03-AdvancedSkills.md)
+- [Free Hands On Courses / Tutorials](sections/04-HandsOnCourse.md)‚
+- [Case Studies](sections/05-CaseStudies.md)
+- [Best Practices Cloud Platforms](sections/06-BestPracticesCloud.md)
+- [130+ Data Sources Data Science](sections/07-DataSources.md)
+- [1001 Interview Questions](sections/08-InterviewQuestions.md)
+- [Recommended Books, Courses, and Podcasts](sections/09-BooksAndCourses.md)
+- [Updates](sections/10-Updates.md)
+<!--  test -->
+
+- [How To Contribute](#how-to-contribute)
+- [Support What You Like](#support)
+- [Important Links](#important-links)
+
+# Full Table Of Contents:
+##  Introduction
+- [What is this Cookbook](sections/01-Introduction.md#what-is-this-cookbook)
+- [Data Engineers](sections/01-Introduction.md#data-engineers)
+- [My Data Science Platform Blueprint](sections/01-Introduction.md#my-data-science-platform-blueprint)
+  - [Connect](sections/01-Introduction.md#connect)
+  - [Buffer](sections/01-Introduction.md#buffer)
+  - [Processing Framework](sections/01-Introduction.md#processing-framework)
+  - [Store](sections/01-Introduction.md#store)
+  - [Visualize](sections/01-Introduction.md#visualize)
+- [Who Companies Need](sections/01-Introduction.md#who-companies-need)
+- [How to Learn Data Engineering](sections/01-Introduction.md#how-to-learn-data-engineering)
+	- [Andreas on the Super Data Science Podcast](sections/01-Introduction.md#Interview-with-Andreas-on-the-Super-Data-Science-Podcast)
+	- [Building Blocks to Learn Data Engineering](sections/01-Introduction.md#building-blocks-to-learn-data-engineering)
+	- [Roadmap for Data  Analysts](sections/01-Introduction.md#roadmap-for-data-analysts)
+	- [Roadmap for Data Scientists](sections/01-Introduction.md#roadmap-for-data-scientists)
+	- [Roadmap for Software Engineers](sections/01-Introduction.md#roadmap-for-software-engineers)
+- [Data Engineers Skills Matrix](sections/01-Introduction.md#data-engineers-skills-matrix)
+- [How to Become a Senior Data Engineer](sections/01-Introduction.md#how-to-become-a-senior-data-engineer)
+
+## Basic Engineering Skills
+- [Learn To Code](sections/02-BasicSkills.md#learn-to-code)
+- [Get Familiar With Git](sections/02-BasicSkills.md#get-familiar-with-git)
+- [Agile Development](sections/02-BasicSkills.md#agile-development)
+  - [Why is agile so important?](sections/02-BasicSkills.md#Why-is-agile-so-important)
+  - [Agile rules I learned over the years](sections/02-BasicSkills.md#agile-rules-i-learned-over-the-years)
+  - [Agile Frameworks](sections/02-BasicSkills.md#agile-frameworks)
+    - [Scrum](sections/02-BasicSkills.md#scrum)
+    - [OKR](sections/02-BasicSkills.md#okr)
+- [Software Engineering Culture](sections/02-BasicSkills.md#software-engineering-culture)
+- [Learn how a Computer Works](sections/02-BasicSkills.md#learn-how-a-computer-works)
+- [Data Network Transmission](sections/02-BasicSkills.md#data-network-transmission)
+- [Security and Privacy](sections/02-BasicSkills.md#security-and-privacy)
+  - [SSL Public and Private Key Certificates](sections/02-BasicSkills.md#ssl-public-and-private-key-Certificates)
+  - [JSON Web Tokens](sections/02-BasicSkills.md#json-web-tokens)
+  - [GDPR regulations](sections/02-BasicSkills.md#gdpr-regulations)
+- [Linux](sections/02-BasicSkills.md#linux)
+  - [OS Basics](sections/02-BasicSkills.md#os-basics)
+  - [Shell scripting](sections/02-BasicSkills.md#shell-scripting)
+  - [Cron Jobs](sections/02-BasicSkills.md#cron-jobs)
+  - [Packet Management](sections/02-BasicSkills.md#packet-management)
+- [Docker](sections/02-BasicSkills.md#docker)
+  - [What is Docker and How it Works](sections/02-BasicSkills.md#what-is-docker-and-what-do-you-use-it-for)
+    -  [Don't Mess Up Your System](sections/02-BasicSkills.md#dont-mess-up-your-system)
+    - [Preconfigured Images](sections/02-BasicSkills.md#preconfigured-images)
+    - [Take it With You](sections/02-BasicSkills.md#take-it-with-you)
+    - [Kubernetes Container Deployment](sections/02-BasicSkills.md#kubernetes-container-deployment)
+    - [How to Create Start and Stop a Container](sections/02-BasicSkills.md#how-to-create-start-stop-a-container)
+    - [Docker Micro Services](sections/02-BasicSkills.md#docker-micro-services)
+    - [Kubernetes](sections/02-BasicSkills.md#kubernetes)
+    - [Why and How To Do Docker Container Orchestration](sections/02-BasicSkills.md#why-and-how-to-do-docker-container-orchestration)
+    - [Userful Docker Commands](sections/02-BasicSkills.md#useful-docker-commands)
+- [The Cloud](sections/02-BasicSkills.md#the-cloud)
+  - [IaaS vs PaaS vs SaaS](sections/02-BasicSkills.md#iaas-vs-paas-vs-saas)
+  - [AWS Azure IBM Google IBM](sections/02-BasicSkills.md#aws-azure-ibm-google)
+  - [Cloud vs On-Premises](sections/02-BasicSkills.md#cloud-vs-on-premises)
+  - [Security](sections/02-BasicSkills.md#security)
+  - [Hybrid Clouds](sections/02-BasicSkills.md#hybrid-clouds)
+- [Security Zone Design](sections/02-BasicSkills.md#security-zone-design)
+  - [How to secure a multi layered application](sections/02-BasicSkills.md#how-to-secure-a-multi-layered-application)
+  - [Cluster security with Kerberos](sections/02-BasicSkills.md#cluster-security-with-kerberos)
+
+## Advanced Engineering Skills
+- [Data Science Platform](sections/03-AdvancedSkills.md#data-science-platform)
+  - [Why a Good Data Platform Is Important](sections/03-AdvancedSkills.md#why-a-good-data-platform-is-important)
+  - [Big Data vs Data Science and Analytics](sections/03-AdvancedSkills.md#Big-Data-vs-Data-Science-and-Analytics)
+  - [The 4 Vs of Big Data](sections/03-AdvancedSkills.md#the-4-vs-of-big-data)
+  - [Why Big Data](sections/03-AdvancedSkills.md#why-big-data)
+    - [Planning is Everything](sections/03-AdvancedSkills.md#planning-is-everything)
+    - [The Problem with ETL](sections/03-AdvancedSkills.md#the-problem-with-etl)
+    - [Scaling Up](sections/03-AdvancedSkills.md#scaling-up)
+    - [Scaling Out](sections/03-AdvancedSkills.md#scaling-out)
+    - [When not to Do Big Data](sections/03-AdvancedSkills.md#please-dont-go-big-data)
+- [Connect](sections/03-AdvancedSkills.md#connect)
+  - [REST APIs](sections/03-AdvancedSkills.md#rest-apis)
+    - [API Design](sections/03-AdvancedSkills.md#api-design)
+    - [Implemenation Frameworks](sections/03-AdvancedSkills.md#implementation-frameworks)
+    - [Security](sections/03-AdvancedSkills.md#security)
+  - [Apache Nifi](sections/03-AdvancedSkills.md#apache-nifi)
+  - [Logstash](sections/03-AdvancedSkills.md#logstash)
+- [Buffer](sections/03-AdvancedSkills.md#buffer)
+  - [Apache Kafka](sections/03-AdvancedSkills.md#apache-kafka)
+    - [Why a Message Queue Tool?](sections/03-AdvancedSkills.md#why-a-message-queue-tool)
+    - [Kafka Architecture](sections/03-AdvancedSkills.md#kafka-architecture)
+    - [Kafka Topics](sections/03-AdvancedSkills.md#what-are-topics)
+    - [Kafka and Zookeeper](sections/03-AdvancedSkills.md#what-does-zookeeper-have-to-do-with-kafka)
+    - [How to Produce and Consume Messages](sections/03-AdvancedSkills.md#how-to-produce-and-consume-messages)
+    - [Kafka Commands](sections/03-AdvancedSkills.md#kafka-commands)
+  - [Apache Redis Pub-Sub](sections/03-AdvancedSkills.md#redis-pub-sub)
+  - [AWS Kinesis](sections/03-AdvancedSkills.md#apache-kafka)
+  - [Google Cloud PubSub](sections/03-AdvancedSkills.md#google-cloud-pubsub)
+- [Processing Frameworks](sections/03-AdvancedSkills.md#processing-frameworks)
+	- [Lambda and Kappa Architecture](sections/03-AdvancedSkills.md#lambda-and-kappa-architecture)
+	- [Batch Processing](sections/03-AdvancedSkills.md#batch-processing)
+	- [Stream Processing](sections/03-AdvancedSkills.md#stream-processing)
+		- [Three Methods of Streaming](sections/03-AdvancedSkills.md#three-methods-of-streaming)
+		- [At Least Once](sections/03-AdvancedSkills.md#at-least-once)
+		- [At Most Once](sections/03-AdvancedSkills.md#at-most-once)
+		- [Exactly Once](sections/03-AdvancedSkills.md#exactly-once)
+		- [Check The Tools](sections/03-AdvancedSkills.md#check-the-tools)
+	- [Should You do Stream or Batch Processing](sections/03-AdvancedSkills.md#should-you-do-stream-or-batch-processing)
+	- [Is ETL still relevant for Analytics?](sections/03-AdvancedSkills.md#is-etl-still-relevant-for-analytics)
+  - [MapReduce](sections/03-AdvancedSkills.md#mapreduce)
+    - [How Does MapReduce Work](sections/03-AdvancedSkills.md#How-does-mapreduce-work)
+    - [MapReduce](sections/03-AdvancedSkills.md#mapreduce)
+    - [MapReduce Example](sections/03-AdvancedSkills.md#example)
+    - [MapReduce Limitations](sections/03-AdvancedSkills.md#What-is-the-limitation-of-mapreduce)
+  - [Apache Spark](sections/03-AdvancedSkills.md#apache-spark)
+    - [What is the Difference to MapReduce?](sections/03-AdvancedSkills.md#what-is-the-difference-to-MapReduce)
+    - [How Spark Fits to Hadoop](sections/03-AdvancedSkills.md#how-does-spark-fit-to-hadoop)
+    - [Spark vs Hadoop](sections/03-AdvancedSkills.md#wheres-the-difference)
+    - [Spark and Hadoop a Perfect Fit](sections/03-AdvancedSkills.md#spark-and-hadoop-is-a-perfect-fit)
+    - [Spark on YARn](sections/03-AdvancedSkills.md#spark-on-yarn)
+    - [My Simple Rule of Thumb](sections/03-AdvancedSkills.md#my-simple-rule-of-thumb)
+    - [Available Languages](sections/03-AdvancedSkills.md#available-languages)
+    - [Spark Driver Executor and SparkContext](sections/03-AdvancedSkills.md#how-spark-works-driver-executor-sparkcontext)
+    - [Spark Batch vs Stream processing](sections/03-AdvancedSkills.md#spark-batch-vs-stream-processing)
+    - [How Spark uses Data From Hadoop](sections/03-AdvancedSkills.md#How-does-spark-use-data-from-hadoop)
+    - [What are RDDs and How to Use Them](sections/03-AdvancedSkills.md#what-are-rdds-and-how-to-use-them)
+    - [SparkSQL How and Why to Use It](sections/03-AdvancedSkills.md#available-languages)
+    - [What are Dataframes and How to Use Them](sections/03-AdvancedSkills.md#what-are-dataframes-how-to-use-them)
+    - [Machine Learning on Spark (TensorFlow)](sections/03-AdvancedSkills.md#machine-learning-on-spark-tensor-flow)
+    - [MLlib](sections/03-AdvancedSkills.md#mllib)
+    - [Spark Setup](sections/03-AdvancedSkills.md#spark-setup)
+    - [Spark Resource Management](sections/03-AdvancedSkills.md#spark-resource-management)
+  - [AWS Lambda](sections/03-AdvancedSkills.md#apache-flink)  
+  - [Apache Flink](sections/03-AdvancedSkills.md#apache-flink)
+  - [Elasticsearch](sections/03-AdvancedSkills.md#elasticsearch)
+  - [Apache Drill](sections/03-AdvancedSkills.md#apache-drill)
+  - [StreamSets](sections/03-AdvancedSkills.md#streamsets)
+- [Store](sections/03-AdvancedSkills.md#store)
+	- [Analytical Data Stores](03-AdvancedSkills.md#analytical-data-stores)
+		- [Data Warehouse vs Data Lake](sections/03-AdvancedSkills.md#data-warehouse-vs-data-lake)
+		- [Snowflake and dbt](sections/03-AdvancedSkills.md#snowflake-and-dbt)
+	- [Transactional Data Stores](sections/03-AdvancedSkills.md#transactional-data-stores)
+		- [SQL Databases](sections/03-AdvancedSkills.md#sql-databases)
+	    - [PostgreSQL DB](sections/03-AdvancedSkills.md#postgresql-db)
+	    - [Database Design](sections/03-AdvancedSkills.md#database-design)
+	    - [SQL Queries](sections/03-AdvancedSkills.md#sql-queries)
+	    - [Stored Procedures](sections/03-AdvancedSkills.md#stored-procedures)
+	    - [ODBC/JDBC Server Connections](sections/03-AdvancedSkills.md#odbc-jdbc-server-connections)
+	  - [NoSQL Stores](sections/03-AdvancedSkills.md#nosql-stores)
+	    - [HBase KeyValue Store](sections/03-AdvancedSkills.md#keyvalue-stores-hbase)
+	    - [HDFS Document Store](sections/03-AdvancedSkills.md#document-stores-hdfs)
+	    - [MongoDB Document Store](sections/03-AdvancedSkills.md#document-stores-mongodb)
+	    - [Elasticsearch Document Store](sections/03-AdvancedSkills.md#Elasticsearch-search-engine-and-document-store)
+	    - [Hive Warehouse](sections/03-AdvancedSkills.md#hive-warehouse)
+	    - [Impala](sections/03-AdvancedSkills.md#impala)
+	    - [Kudu](sections/03-AdvancedSkills.md#kudu)
+	    - [Apache Druid](sections/03-AdvancedSkills.md#apache-druid)
+	    - [InfluxDB Time Series Database](sections/03-AdvancedSkills.md#influxdb-time-series-database)
+	    - [Greenplum MPP Database](sections/03-AdvancedSkills.md#mpp-databases-greenplum)
+- [Visualize](sections/03-AdvancedSkills.md#visualize)
+  - [Android and IOS](sections/03-AdvancedSkills.md#android-and-ios)
+  - [API Design for Mobile Apps](sections/03-AdvancedSkills.md#how-to-design-apis-for-mobile-apps)
+  - [Dashboards](sections/03-AdvancedSkills.md#dashboards)
+    - [Grafana](sections/03-AdvancedSkills.md#grafana)
+    - [Kibana](sections/03-AdvancedSkills.md#kibana)
+  - [Webservers](sections/03-AdvancedSkills.md#how-to-use-webservers-to-display-content)
+    - [Tomcat](sections/03-AdvancedSkills.md#tomcat)
+    - [Jetty](sections/03-AdvancedSkills.md#jetty)
+    - [NodeRED](sections/03-AdvancedSkills.md#nodered)
+    - [React](sections/03-AdvancedSkills.md#react)
+  - [Business Intelligence Tools](sections/03-AdvancedSkills.md#business-intelligence-tools)
+    - [Tableau](sections/03-AdvancedSkills.md#tableau)
+    - [Power BI](sections/03-AdvancedSkills.md#power-bi)
+    - [Quliksense](sections/03-AdvancedSkills.md#quliksense)
+  - [Identity & Device Management](sections/03-AdvancedSkills.md#Identity-and-device-management)
+    - [What Is A Digital Twin](sections/03-AdvancedSkills.md#what-is-a-digital-twin)
+    - [Active Directory](sections/03-AdvancedSkills.md#active-directory)
+- [Machine Learning](sections/03-AdvancedSkills.md#machine-learning)
+  - [How to do Machine Learning in production](sections/03-AdvancedSkills.md#how-to-domachine-learning-in-production)
+  - [Why machine learning in production is harder then you think](sections/03-AdvancedSkills.md#why-machine-learning-in-production-is-harder-then-you-think)
+  - [Models Do Not Work Forever](sections/03-AdvancedSkills.md#models-do-not-work-forever)
+  - [Where are The Platforms That Support Machine Learning](sections/03-AdvancedSkills.md#where-are-the-platforms-that-support-this)
+  - [Training Parameter Management](sections/03-AdvancedSkills.md#training-parameter-management)
+  - [How to Convince People That Machine Learning Works](sections/03-AdvancedSkills.md#how-to-convince-people-machine-learning-works)
+  - [No Rules No Physical Models](sections/03-AdvancedSkills.md#no-rules-no-physical-models)
+  - [You Have The Data. Use It!](sections/03-AdvancedSkills.md#you-have-the-data-use-it)
+  - [Data is Stronger Than Opinions](sections/03-AdvancedSkills.md#data-is-stronger-than-opinions)
+  - [AWS Sagemaker](sections/03-AdvancedSkills.md#aws-sagemaker)
+
+
+## Hands On Course
+
+- [Free Data Engineering Course with AWS, TDengine, Docker and Grafana](sections/04-HandsOnCourse.md#free-data-engineering-course-with-aws-tdengine-docker-and-grafana)
+- [Monitor your data in dbt & detect quality issues with Elementary](sections/04-HandsOnCourse.md#monitor-your-data-in-dbt-and-detect-quality-issues-with-elementary)
+- [Solving Engineers 4 Biggest Airflow Problems](sections/04-HandsOnCourse.md#solving-engineers-4-biggest-airflow-problems)
+- [The best alternative to Airlfow? Mage.ai](sections/04-HandsOnCourse.md#the-best-alternative-to-airlfow?-mage.ai)
+
+## Case Studies
+
+- [Data Science @Airbnb](sections/05-CaseStudies.md#data-science-at-Airbnb)
+- [Data Science @Amazon](sections/05-CaseStudies.md#data-science-at-Amazon)
+- [Data Science @Baidu](sections/05-CaseStudies.md#data-science-at-Baidu)
+- [Data Science @Blackrock](sections/05-CaseStudies.md#data-science-at-Blackrock)
+- [Data Science @BMW](sections/05-CaseStudies.md#data-science-at-BMW)
+- [Data Science @Booking.com](sections/05-CaseStudies.md#data-science-at-Booking.com)
+- [Data Science @CERN](sections/05-CaseStudies.md#data-science-at-CERN)
+- [Data Science @Disney](sections/05-CaseStudies.md#data-science-at-Disney)
+- [Data Science @DLR](sections/05-CaseStudies.md#data-science-at-DLR)
+- [Data Science @Drivetribe](sections/05-CaseStudies.md#data-science-at-Drivetribe)
+- [Data Science @Dropbox](sections/05-CaseStudies.md#data-science-at-Dropbox)
+- [Data Science @Ebay](sections/05-CaseStudies.md#data-science-at-Ebay)
+- [Data Science @Expedia](sections/05-CaseStudies.md#data-science-at-Expedia)
+- [Data Science @Facebook](sections/05-CaseStudies.md#data-science-at-Facebook)
+- [Data Science @Google](sections/05-CaseStudies.md#data-science-at-Google)
+- [Data Science @Grammarly](sections/05-CaseStudies.md#data-science-at-Grammarly)
+- [Data Science @ING Fraud](sections/05-CaseStudies.md#data-science-at-ING-Fraud)
+- [Data Science @Instagram](sections/05-CaseStudies.md#data-science-at-Instagram)
+- [Data Science @LinkedIn](sections/05-CaseStudies.md#data-science-at-LinkedIn)
+- [Data Science @Lyft](sections/05-CaseStudies.md#data-science-at-Lyft)
+- [Data Science @NASA](sections/05-CaseStudies.md#data-science-at-NASA)
+- [Data Science @Netflix](sections/05-CaseStudies.md#data-science-at-Netflix)
+- [Data Science @OLX](sections/05-CaseStudies.md#data-science-at-OLX)
+- [Data Science @OTTO](sections/05-CaseStudies.md#data-science-at-OTTO)
+- [Data Science @Paypal](sections/05-CaseStudies.md#data-science-at-Paypal)
+- [Data Science @Pinterest](sections/05-CaseStudies.md#data-science-at-Pinterest)
+- [Data Science @Salesforce](sections/05-CaseStudies.md#data-science-at-Salesforce)
+- [Data Science @Siemens Mindsphere](sections/05-CaseStudies.md#data-science-at-Siemens-Mindsphere)
+- [Data Science @Slack](sections/05-CaseStudies.md#data-science-at-Slack)
+- [Data Science @Spotify](sections/05-CaseStudies.md#data-science-at-Spotify)
+- [Data Science @Symantec](sections/05-CaseStudies.md#data-science-at-Symantec)
+- [Data Science @Tinder](sections/05-CaseStudies.md#data-science-at-Tinder)
+- [Data Science @Twitter](sections/05-CaseStudies.md#data-science-at-Twitter)
+- [Data Science @Uber](sections/05-CaseStudies.md#data-science-at-Uber)
+- [Data Science @Upwork](sections/05-CaseStudies.md#data-science-at-Upwork)
+- [Data Science @Woot](sections/05-CaseStudies.md#data-science-at-Woot)
+- [Data Science @Zalando](sections/05-CaseStudies.md#data-science-at-Zalando)
+
+## Best Practices Cloud Platforms
+
+- [Amazon Web Services (AWS)](sections/06-BestPracticesCloud.md#aws)
+  - [Connect](sections/06-BestPracticesCloud.md#Connect)
+  - [Buffer](sections/06-BestPracticesCloud.md#Buffer)
+  - [Processing](sections/06-BestPracticesCloud.md#Processing)
+  - [Store](sections/06-BestPracticesCloud.md#Store)
+  - [Visualize](sections/06-BestPracticesCloud.md#Visualize)
+  - [Containerization](sections/06-BestPracticesCloud.md#Containerization)
+  - [Best Practices](sections/06-BestPracticesCloud.md#Best-Practices)
+  - [More Details](sections/06-BestPracticesCloud.md#More-Details)
+- [Microsoft Azure](sections/06-BestPracticesCloud.md#azure)
+  - [Connect](sections/06-BestPracticesCloud.md#Connect-1)
+  - [Buffer](sections/06-BestPracticesCloud.md#Buffer-1)
+  - [Processing](sections/06-BestPracticesCloud.md#Processing-1)
+  - [Store](sections/06-BestPracticesCloud.md#Store-1)
+  - [Visualize](sections/06-BestPracticesCloud.md#Visualize-1)
+  - [Containerization](sections/06-BestPracticesCloud.md#Containerization-1)
+  - [Best Practices](sections/06-BestPracticesCloud.md#Best-Practices-1)
+- [Google Cloud Platform (GCP)](sections/06-BestPracticesCloud.md#gcp)
+  - [Connect](sections/06-BestPracticesCloud.md#Connect-2)
+  - [Buffer](sections/06-BestPracticesCloud.md#Buffer-2)
+  - [Processing](sections/06-BestPracticesCloud.md#Processing-2)
+  - [Store](sections/06-BestPracticesCloud.md#Store-2)
+  - [Visualize](sections/06-BestPracticesCloud.md#Visualize-2)
+  - [Containerization](sections/06-BestPracticesCloud.md#Containerization-2)
+  - [Best Practices](sections/06-BestPracticesCloud.md#Best-Practices-2)
+
+## 130+ Free Data Sources For Data Science
+
+- [General And Academic](sections/07-DataSources.md#General-And-Academic)
+- [Content Marketing](sections/07-DataSources.md#Content-Marketing)
+- [Crime](sections/07-DataSources.md#Crime)
+- [Drugs](sections/07-DataSources.md#Drugs)
+- [Education](sections/07-DataSources.md#Education)
+- [Entertainment](sections/07-DataSources.md#Entertainment)
+- [Environmental And Weather Data](sections/07-DataSources.md#Environmental-And-Weather-Data)
+- [Financial And Economic Data](sections/07-DataSources.md#Financial-And-Economic-Data])
+- [Government And World](sections/07-DataSources.md#Government-And-World)
+- [Health](sections/07-DataSources.md#Health)
+- [Human Rights](sections/07-DataSources.md#Human-Rights)
+- [Labor And Employment Data](sections/07-DataSources.md#Labor-And-Employment-Data)
+- [Politics](sections/07-DataSources.md#Politics)
+- [Retail](sections/07-DataSources.md#Retail)
+- [Social](sections/07-DataSources.md#Social)
+- [Travel And Transportation](sections/07-DataSources.md#Travel-And-Transportation)
+- [Various Portals](sections/07-DataSources.md#Various-Portals)
+- [Source Articles and Blog Posts](sections/07-DataSources.md#Source-Articles-and-Blog-Posts)
+- [Free Data Sources Data Science](sections/07-DataSources.md)
+
+## 1001 Interview Questions
+
+- [Interview Questions](sections/08-InterviewQuestions.md)
+
+## Recommended Books, Courses, and Podcasts
+
+- [About Books and Courses](sections/09-BooksAndCourses.md#about-books-and-courses)
+- [Books](sections/09-BooksAndCourses.md#books)
+  - [Languages](sections/09-BooksAndCourses.md#books-languages)
+  - [Data Tools & Platforms](sections/09-BooksAndCourses.md#books-data-science-tools)
+  - [Business](sections/09-BooksAndCourses.md#Books-Business)
+  - [Community Recommendations](sections/09-BooksAndCourses.md#Community-Recommendations)
+- [Online Courses](sections/09-BooksAndCourses.md#online-courses)
+  - [Preparation courses](sections/09-BooksAndCourses.md#Preparation-courses)
+  - [Data engineering courses](sections/09-BooksAndCourses.md#Data-engineering-courses)
+- [Podcasts](sections/09-BooksAndCourses.md#Podcasts)
+  - [Super Data Science](sections/09-BooksAndCourses.md#Super-Data-Science)
+  - [Data Skeptic](sections/09-BooksAndCourses.md#Data-Skeptic)
+  - [Data Engineering Podcast](sections/09-BooksAndCourses.md#Data-Engineering-Podcast)
+  - [Roaring Elephant BiteSized Big Tech](sections/09-BooksAndCourses.md#Roaring-Elephant-BiteSized-Big-Tech)
+  - [SQL Data Partners Podcast](sections/09-BooksAndCourses.md#SQL-Data-Partners-Podcast)
+
+
+## How To Contribute
+If you have some cool links or topics for the cookbook, please become a contributor.
+
+Simply pull the repo, add your ideas and create a pull request.
+You can also open an issue and put your thoughts there.
+
+Please use the "Issues" function for comments.
+
+
+## Important Links
+
+Subscribe to my YouTube channel for regular updates:
+[Link to YouTube](https://www.youtube.com/channel/UCY8mzqqGwl5_bTpBY9qLMAA)
+
+I have a Medium publication where you can publish your data engineer articles to reach more people:
+[Medium publication](https://link.medium.com/9oi1VDrhPW)
+
+<br>
+*(As an Amazon Associate I earn from qualifying purchases from Amazon
+This is free of charge for you, but super helpful for supporting this channel)