Best Book in Table Tennis

It goes without saying that the best way to teach table tennis is through personalized one on one coaching. However, I find value on reading books specially on the psychological aspect of the game. I recently read, Table Tennis Tactics for Thinkers, by Larry Hodges and I found quite a lot of gems from the book. For example, one great tactic I learned from the book is to gather as much weakness from the opponent and then use it to pressure him specially on crucial points.

What table tennis book have you read that you have found great value?