What's the best move? One that will disturb your opponant the most. Regardless of your playing strength, chess psychology will help you maximise your playing strength--and win more games.
This book discusses psychological issues related to playing chess. The book's summary is a list of "commonsense principles of chess psychology." They recommend being aware of the issues, and that trying to exploit them in your opponent's mind is secondary to improving your play.
This is a great book covering a very important and interesting topic in chess. The examples are great and very informative. Benko's style and experience was very helpful for introducing me to some new ideas.