Chess book


I found Euwe's "Chess Master Vs Chess Amateur" extremely helpful. It is an in depth analysis of master games against all levels of amateur players, from absolute beginners to strong experts, with every game fully annotated, explaining the masters' ideas and the amateurs' mistakes. Also Chernev's "Logical Chess" is very good.
But if you are intending to play in tournaments Kotov's "Think Like a Grandmaster" is invaluable!
I am planning to get a chess book tommorrow and wanted some ideas. Please keep in mind that I have enough books on the opening.