Tom Holland's, The 12-Week Triathlete is truly an incredible training tool. Having been an endurance athlete for many years this is the first Triathlon training book that I have read cover to cover. It is not filled with all that technical jargon that most training books have. It's simple and enjoyable to read, helping me to remember why I love the sport of triathlon. The most helpful portions are the Triathlon Vocabulary sections which are interjected throughout the chapters; learning key phrases like "small gears," "negative splits" and "wetsuit strippers" are much more beneficial than learning how to prioritize my training for the next 4 months. Tom also devotes a chapter on Resistance training with illustrations along with another chapter focusing on Stretching and Flexibility, two components of Triathlon training which I have found to be essential. This is a must have for a seasoned veteran and the beginner. If you're going to buy one triathlon book, this year, Tom Holland's, The 12-Week Triathlete is your only option!