Here is a collection of useful guides on a variety of topics. I try to keep as many of these guides as up to date as possible, but some may be wrong in places or have legacy information. If you have any suggestions for improvements, or notice any mistakes, please let me know!
Guides designed to help teach the usage of various tools.
A collection of guides dedicated to helping all kinds of users to fully exploit various applications, utilities and more.
A collection of guides on video game development