This book contains a comprehensive guide to learning Jiu-Jitsu and adopting the life style and diet of its practitioners. Jujutsu, also referred to as Jujitsu or Jiu-Jitsu, is a Japanese style of martial art and close combat that concentrates on defeating an armed opponent both with or without a short weapon. "Ju" means soft or flexible, while "Jutsu" means "art" or "technique" and refers to the use of your opponent's force against themselves. This volume contains useful illustrations and simple, clear instructions for the positions and manoeuvres treated, as well we chapters and explanations on general principles and keeping your body in shape. Contents include: "The History of Jiu-Jitsu with a description of its First Principles", "A Healthy Stomach the Basis of All Strength--What the Japanese Eat in Summer and Winter", "Feats that Strengthen the Heart and Lungs--Work that Brings the Arms to a Condition of Magnificent Development", "Exercises that Develop the Legs--The Incidental Benefit to the Arms", "The Value of Even Temper in Athletics--Some of the Feats that Require Good Nature", etc. Harrie Irving Hancock (1868 - 1922) was an American writer and chemist most famous for being an author of children's literature during the late 19th and early 20th centuries. He also notable wrote a fictional depiction of a German invasion of the United States. Other notable works by this author include: "His One Ambition" (1892), "Captain of the Minute Men" (1890), and "The Prince of Grit" (1899). Many vintage books such as this are increasingly scarce and expensive. It is with this in mind that we are republishing this volume now in an affordable, modern, high-quality edition complete with a specially-commissioned new biography of the author.