The book "My Art and Skill of Karate" presents the technical knowledge and original accounts imparted by famed Okinawa karate master Motobu Chōki (1870-1944). This translation was created in close cooperation with the author's grandson, Motobu Naoki sensei. It also includes a congratulatory address by the author's son, Motobu Chōsei sensei, the current head of the school. Moreover, this year marks the 150th anniversary of Motobu Chōki's birth. In other words, three generations of the Motobu family were involved in this new translation, connecting the history and tradition of karate from the 19th to 21th century.In addition to accounts about old-time karate masters in Okinawa, the work features thirty-four photos of Motobu performing Naihanchi Shodan, including written descriptions. Moreover, it includes twenty kumite with pictures and descriptions as well as five pictures of how to use the makiwara.What makes it even more unique is that the existence of the book was unknown until the 1980s, when the wife of a deceased student sent the book to Motobu Chōki's son, Chōsei. Until today this edition remains the only known original edition in existence, and it provided the basis for this original translation. This work has to be considered one of the most important sources to assess and interpret karate.