Leonardo carried these ‘libricini’ (tiny notebooks) everywhere to record what he saw and jot down ideas. Texting was 500 years in Leonardo’s future. Writing was awkward. It’s not as if Leonardo carried a ballpoint pen with sepia ink. He had to carry a vial of liquid ink and a quill.
Leonardo’s camera is the same size and weight as a cell phone, always handy, and fits into a pocket.
learn more about Leonardo and his sister LISABETTA – a stolen glance