For those who don't know --

"Sun-tzu ping-fa (Sun Tzu The Art of War) is one of those rare texts that transcends time. Though it was written more than 2,000 years ago, it is arguably still the most important work on the subject of strategy today.
Written by a brilliant and experienced Chinese general named Sun Wu, The Art of War was intended only for the military elite of his time period. However, this treatise would later be absorbed by others of influence -- from the fearless samurai in feudal Japan to the shrewd business leaders of the 21st century.
The book is even more fascinating than its background. Only reading it will one see the principles are timeless and true, the words pragmatic and universally applicable to any situation that requires absolute victory. Equally important, a person can learn to avoid disasters."

The Sun Tzu's Art of War is one of those books, whose teachings you can apply anywhere and everywhere. DotA is no exception. After reading it, I found myself comparing the lines to in-game DotA situations and they were so very relevant. Reading this will change your whole outlook on the subject of strategy and strengthen your in-game planning as well. I've often found myself getting annoyed because of something unexpected happening in-game and then asking myself what went wrong. In fact, 50% of the deaths in DotA are caused by the player himself. I think that every DotA player/strategy gamer should read this. For your sake, I've compiled a digest version from Sonshi.com (it's in MS Word format)

Here's the download link:

http://www.filefactory.com/file/afg2d03/n/Sun_Tzu_s_Art_of_War_doc