Why buy our paperbacks? Printed in USA on High Quality Paper Standard Font size of 10 for all books Fulfilled by Amazon Expedited shipping 30 Days Money Back Guarantee Unabridged (100% Original content) BEWARE OF LOW-QUALITY SELLERS Don't buy cheap paperbacks just to save a few dollars. Most of them use low-quality papers & binding. Their pages fall off easily. Some of them even use very small font size of 6 or less to increase their profit margin. It makes their books completely unreadable. About The Notebooks of Leonardo Da Vinci - Complete Edition By Leonardo Da Vinci Leonardo da Vinci (1452 - 1519), painter, sculptor, architect and engineer, kept notes and drawings of his studies, ideas and inventions. Over 7,000 pages have survived, including this notebook known as Codex Arundel after its English collector Thomas Howard, 14th earl of Arundel.The structure of the notebook shows that it was not originally a bound volume. It was put together after Leonardo's death from loose papers of various types and sizes, some indicating Leonardo's habit of carrying smaller bundles of notes to document observations outdoors.Many of the pages were written in 1508; others come from different periods in Leonardo's life, covering practically the whole of his career. The notebook features many topics, including mechanics, the flow of rivers, astronomy, optics, architecture and the flight of birds, demonstrating Leonardo's intense curiosity.