By John J. Murphy - Technical Analysis of the Financial Markets (2nd Revised edition) (12.2.1998)

As a trader, I need good, vetted info on trading techniques and what to think about. There's a lot of good stuff on the Internet, and a lot of worthless junk too. This book is time-tested, and just what I was looking for. Highly recommend if you are looking to get into the markets or have been in, but need to refresh your point of view.