art books on the internet archive for you
figure drawing for all it's worth (+ creative illustration)
will eisner comics and sequential art
will eisner graphic storytelling and visual narrative
understanding comics (+ making comics)
folder of various animation production art
burne hogarth drawing dynamic hands
perspective for comic book artists
be free
I've recommended this one before, but for all the non-human vertebrate likers out there... the art of animal drawing