I personally inclined not to have a guide for a game but this is an exception. Grand Theft Auto is a massive game. You will probably need 60 or more hours just to complete the missions themselves let alone trying new things that you can do in the city. This guide will make the learning curve so easy and make you prepare to what items/weapon you need for the next crucial mission.The guide covers almost all aspects of the game from how to shoot, hijack a car to some 'nice' secret that I do not what to spoil you with.
The structure of the guide is straight forward. You can easily find out what you want since it has a clear information layout.
The quality of presentation is good but could be better. This probably the reason why I gave it 4 instead of 5 stars.
In summary, if you have GTA 3 then this guide is a must have. If you don't have the game already I'm sure it will make you buy the game.