GTA V is the biggest game Rockstar have ever made, it's got a huge map and a ton of features. There is so much packed into this game that it's easy to miss and forget about stuff.
Thankfully Rockstar have launched manuals for the game which contain everything you need to know about GTA V and how to play. If you've played the game, you will already know that the button configuration changes in different situations - it can actually become confusing. This manual can help you master the controls.
The manual covers all the game features, gives you an introduction to Los Santos and even a map of the game showing points of interest.
Rockstar promise to bring Android and Windows Phone versions very soon.