https://www.penguinrandomhouse.com/books/293436/isaac-newton-by-kathleen-krull-illustrated-by-boris-kulikov/9780142408209/
Isaac Newton by Kathleen Krull: 9780142408209 | PenguinRandomHouse.com: Books
Here is a man with an imagination so large that just ?by thinking on it,? he invented calculus and figured out the scientific explanation of gravity....
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https://www.indigo.ca/en-ca/leonardo-da-vinci/9780142408216.html
Leonardo Da Vinci Book By Kathleen Krull, ('tp') | Indigo
Buy the book Leonardo da Vinci by kathleen krull at Indigo
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