Isshinryu Karate is practiced worldwide by thousands of devotees. In this book, Mr. Washabaugh presents a unique perspective gleaned from over four decades of practice. Any martial art has a core from which to build upon. The core of Isshinryu establishes a well defined form which is essential for long term growth and expertise. The form is introduced by established and specific basic exercises and by the first three kata, Seisan, Seiunchin, and Naihanchi. These kata (forms) are centuries old and can be considered like encyclopedia of karate practices and are examined in detail. This book defines core techniques, i.e. strikes, blocks, and kicks, and kata concepts of offense, defense, posture, and movement. These are presented in an organized and efficient manner reflective of Isshinryu practice. They are accompanied by several illustrations. Also included is a historical perspective and an exploration of mind/body/spirit connections. This core of Isshinryu establishes the purpose of training: self-defense, self-improvement, and perfection of character.