None; so far it's been fairly easy to improve with youtube and analyzing my games, but it gets harder, I might need to read one...
How many chess books have you read?

I have worked through Bain's "Chess Tactics for Students", but then that's not really reading, but doing puzzles. I think I've read every entry in Silman's "The Complete Book of Chess Strategy" because it's in an encyclopedia format and small chunks of it are easy to digest in one "sitting". It's usually what I grab when I head to the bathroom....
Otherwise it's a chapter here and a chapter there or for reference like FCO and Chess OPening Essentials. For good, bad, or indifferent I find digital presentations like ChessMentor and videos to be a more efficient use of my time. As an example, I have Sveshnikov's "the complete c3 sicilian" , all 574 pages of it which I purchased in the hope that it might spur me to serious study-my first and only specialized opening book. It's just too daunting a challenge for me although I have used it for reference. Recently I saw a 20 hour DVD series on the c3 Sicilian that's based on the book; I might just spring for that.

Two books, my system and think like a grand master, most of my improvement comes from solving puzzles online, playing slow games and post mortem analysis.

yeah, i know but i still think that books are vastly superior to videos.
right now, i am going through andrew soltis' books which are super awesome.

Two books, my system and think like a grand master, most of my improvement comes from solving puzzles online, playing slow games and post mortem analysis.
robles, what did you think of 'my system'. i have it and am going through it concurrently with soltis' books. i find it refreshing to have things explained so simply as is done in my system.
what did you mainly learn from it and how has it benefitted your play. are you an active OTB player?

4 books.
1.practical chess endings by Chernev
2.Road to chess mastry part one
3.Road to chess mastery part two
4.Capblanca' a best games
5.Karpov versus Kasparov 1980 worls chess championship.

4 books.
1.practical chess endings by Chernev
2.Road to chess mastry part one
3.Road to chess mastery part two
4.Capblanca' a best games
5.Karpov versus Kasparov 1980 worls chess championship.
ilgambitto, you mean you have finished all those books. that's some heavy reading.

Well what i learned the most from my system and think like a grandmaster was strategy concepts very well explained and thinking process. i have to admit that at the first moment when i tryied to apply those concepts otb i begun to lose a lot because most of my plans had tactical flaws. After realizing i needed to enhance my tactics in order to execute my strategic plans i begun to solve puzzles a lot and i have seen an improvement in my positional play because of my tactical training.

Cover to cover?
Bain's "Chess Tactics for Students"
Chernev's "Logical Chess Move by Move"
Alburt's "Comprehensive Chess Course" Vols. 1 & 2
Also: "Searching for Bobby Fischer," "Queen's Gambit," and many other memoirs whose titles escape me at the moment.
How many books have sustained your interest so that you have finished them? Be honest, please.