diff --git a/CONTRIBUTING.md b/CONTRIBUTING.md
index 1becb0b0a1..b5132c16e2 100644
--- a/CONTRIBUTING.md
+++ b/CONTRIBUTING.md
@@ -4,7 +4,7 @@
 
 - Python 3.6
 - Git CLI installed
-- Python, pip and git are all available as command-line commands (add to path if needed)
+- Python, pip and git are all available as command-line commands (add to the path if needed)
 
 Virtual environment will be created in *PyfaEnv* folder. Project will be cloned and run from the *PyfaDEV* folder. Separate virtual environment will be created so required libraries won't clutter the main python installation.
 
@@ -17,16 +17,16 @@ Clone the repository
 git clone <repo> PyfaDEV
 ```
 
-Create virtual environment
+Create the virtual environment
 ```
 python -m venv PyfaEnv
 ```
 
-Activate virtual environment
+Activate the virtual environment
 
 ```
 For cmd.exe: PyfaEnv\scripts\activate.bat
-For bash: source <venv>/bin/activate
+For bash: source <venv>/Scripts/activate
 ```
 > For other OS check [Python documentation](https://docs.python.org/3/library/venv.html)
 
@@ -52,11 +52,11 @@ python PyfaDEV\pyfa.py
 
 Install PyCharm / Other IntelliJ product with Python plugin
 
-After launching select *Check out from Version Control* -> *GIt*
+After launching - select *Check out from Version Control* -> *GIt*
 
 ![welcome](https://user-images.githubusercontent.com/54093496/66862580-d8edab00-ef99-11e9-94e2-e93d7043e620.png)
 
-Login to GitHub, paste repo URL and seect the folder to which to clone the project, press *Clone*.
+Login to GitHub, paste the repo URL and select the folder to which to clone the project into, press *Clone*.
 
 ![Clone](https://user-images.githubusercontent.com/54093496/66862748-38e45180-ef9a-11e9-9f68-4903baf47385.png)
 
@@ -68,7 +68,7 @@ Press on options and add new virtual environment.
 
 ![venv](https://user-images.githubusercontent.com/54093496/66862833-67622c80-ef9a-11e9-94fa-47cca0158d29.png)
 
-Open project tree view and double-click on *requirements.txt*. Press *Install requirements*. Install all requirements.
+Open project tree view and double-click on the *requirements.txt*. Press *Install requirements*. Install all requirements.
 
 ![Reqs](https://user-images.githubusercontent.com/54093496/66862870-7a74fc80-ef9a-11e9-9b18-e64be42c49b8.png)
 
@@ -76,4 +76,27 @@ Create new *Run Configuration*. Set correct *Script path* and *Python interprete
 
 ![Run configuraion](https://user-images.githubusercontent.com/54093496/66862970-b4460300-ef9a-11e9-9fb4-20e24759904b.png)
 
-Test that the project is starting properly.
\ No newline at end of file
+Check that the project is starting properly.
+
+## Running tests
+
+Switch to the proper virtual environment
+```
+For cmd.exe: PyfaEnv\scripts\activate.bat
+For bash: source <venv>/Scripts/activate
+```
+
+Install pytest 
+```
+pip install pytest  
+```
+
+Switch to pyfa directory.
+
+Run tests (any will do)
+```
+python -m pytest
+py.test
+```
+
+More information on tests can be found on appropriate [Wiki page](https://github.com/pyfa-org/Pyfa/wiki/Developers:-Writing-Tests-for-Pyfa).
\ No newline at end of file
diff --git a/service/marketSources/__init__.py b/service/marketSources/__init__.py
index eb0162324c..410ceb724f 100644
--- a/service/marketSources/__init__.py
+++ b/service/marketSources/__init__.py
@@ -1 +1 @@
-__all__ = ['evemarketer', 'evemarketdata', 'evepraisal']
+__all__ = ['evemarketer', 'evepraisal', 'evemarketdata']
diff --git a/service/marketSources/evepraisal.py b/service/marketSources/evepraisal.py
index e910b92fa1..66dd5b1f00 100644
--- a/service/marketSources/evepraisal.py
+++ b/service/marketSources/evepraisal.py
@@ -66,11 +66,15 @@ def fetchPrices(priceMap, fetchTimeout, system=None):
             try:
                 typeID = int(itemData['typeID'])
                 price = itemData['prices']['sell']['min']
+                orderCount = itemData['prices']['sell']['order_count']
             except (KeyError, TypeError):
                 continue
             # evepraisal returns 0 if price data doesn't even exist for the item
             if price == 0:
                 continue
+            # evepraisal seems to provide price for some items despite having no orders up
+            if orderCount < 1:
+                continue
             priceMap[typeID].update(PriceStatus.fetchSuccess, price)
             del priceMap[typeID]