Copying is also a basic tool of practice, there's a ton of ancient art we only know through copies, such as Leonardo's "The Battle of Anghiari"[0] which only su

Copying is also a basic tool of practice, there's a ton of ancient art we only know through copies, such as Leonardo's "The Battle of Anghiari"[0] which only survived through a copy of a copy. [0] https://en.m.wikipedia.org/wiki/The_Battle_of_Anghiari_(Leonardo) https://en.m.wikipedia.org/wiki/The_Battle_of_Anghiari_(Leon...