Scientist, painter, mechanical engineer, sculptor, thinker, city planner, storyteller, musician, architect — Leonardo da Vinci, builder of the first flying machine, was one of the great universal geniuses of Western civilization. His voluminous notebooks, the great storehouse of his theories and discoveries, are presented here in 1566 extracts that reveal the full range of Leonardo's versatile interest: all the important writings on painting, sculpture, architecture, anatomy, astronomy, geography, topography, and other fields are included, in both Italian and English, with 186 plates of manuscript pages and many other drawings reproduced in facsimile size.