Leonardo's "Self-Portrait" from circa 1510–13

What's inside Leonardo da Vinci's notebooks?

Packed with intricate sketches and detailed notes, Leonardo's personal diaries reveal his countless passions—from the structures of human anatomy to the possibilities of human flight.

Leonardo's "Self-Portrait" from circa 1510–13 is housed in the Biblioteca Reale, Turin. Leonardo signed off in his notebooks as "disscepolo della sperientia," which would be rendered in modern Italian as discepolo dell’esperienza (disciple of experience).
Image courtesy of Realy Easy Star / Toni Spagone / Alamy Stock Photo
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