Hey! Everyone - the Metropolitan Museum of Art has a load of free art/art history books
https://www.metmuseum.org/art/metpublications/titles-with-full-text-online?searchtype=F

This one looks genuinely interesting, but even if it didn't, I'd read it anyway just so I can bore people at parties by endlessly talking about 'Ancient Egyptian Representations Of Turtles'

https://books.google.co.uk/books?id=8E0Jmhv5RqQC&printsec=frontcover&redir_esc=y#v=onepage&q&f=false

Ancient Egyptian Representations of Turtles