This book is considered by many to be the “Bible” of technical analysis since it contains an exhaustive amount of information covering the core concepts. The book also covers ancillary topics like trading psychology and market mechanics that help traders understand "the why" rather than just "the how" of technical analysis. Despite the wide breadth of knowledge, the book is very approachable and easy to understand for novice traders. Description from Investopedia.com.
Technical Analysis Explained