I have a ton of drawing books, my personal favorites are the how to draw manga series right out of japan, even untranslated many have enough diagrams and examples you can get the idea behind how something is made. My most hated ones are the "Draw manga" american series, which kind of feels like they are only playing lip services and make some very scary, off putting designs.

And yes, that bottom one is real advice from a book I use to own but sold off.