In the year 1860, the lieutenant of cavalry Dr Spanish. R.F. Pereda collected much of the teachings of Master Matsu Higa in the To-The Okinawan, the complex and enigmatic "Art of the empty hand". Unpublished until 1975, the manuscript was recovered and developed by its bisnieto, the Master of Karate and physician Dr. Paul Pereda that has taken more than 20 years to complete this work. A real gem and anthropological treasure, which is essential for scholars of any art knowledge.