To find your Wasteland 2 instruction manual:
- Steam: Go to your Steam Library, select Wasteland 2, click the Store button that appears, and click the View the manual link on the right-hand side of the page.
- GOG: Go to your games library, click the Wasteland 2 box you see there, and under "My bonus content": click the game manual.
A copy of the manual and the Reference Guide is also included inside your installation directory under the Documentation subfolder (i.e. ...\Steam\SteamApps\common\Wasteland 2\Build\Documentation).