Book excerpt: Master of art, science, philosophy, architecture and much more, Leonardo da Vinci was the definition of a Renaissance Man. While many of his works were left unfinished or have badly deteriorated, his drawings and words preserve his genius and remain a critical resource for artists today. Delve into one of history's greatest minds, and be guided and inspired by his works and wisdom in The Leonardo da Vinci Sketchbook. From anatomical studies to tonal compositions, master essential techniques, principles and subjects. Pore over the most compelling details of Leonardo's work and follow the guided projects within to become a master draughtsman.