For the first time in English language, the notebooks are made available, rearranged, presumably, as Da Vinci would have done it if he had taken time. They reveal him as a philosopher, artist, scientist, painter, sculptor, astronomer, architect, geographer, inventor, musician. MacCurdy, outstanding authority, has divided the material according to the subjects:- anatomy, medicine, physiology, botany, geology, flight, mathematics, hydraulics, inventions, warfare, colour, sculpture, music, jests, allegory, books, etc., : 50 sections. Some of the material shows Leonardo as the teacher, and his precepts are sound today, some show him as the scholar, the scientist, the artist. Each side of a many faceted nature is reflected in these notes, and the book stands as a monument to probably the most gifted being who ever lived, who took ""all knowledge as his province"". And this is a superb piece of bookmaking -- 64 illustrations in photogravure, 2 quarto volumes, Caslon Old Face, ivory toned paper. The ideal gift book for the student of art, for scholars interested in other aspects of Da Vinci's interests. The preface presents the editor and his method and findings, analyzes Da Vinci's permanent contributions, personality, is a record of the mss. and how this book came to be. Sources are indicated throughout after each extract.