Best supplemental textbook for AP Calc AB

Hi everyone,

I’m not doing as well in AP Calc AB as I would like to (I have an 80%) and was just wondering if anyone had any textbooks they would recommend, particularly those with a lot of practice problems.

https://ocw.mit.edu/resources/res-18-001-calculus-online-textbook-spring-2005/textbook/ is a free one.

Honestly, you don’t need one. Just do a ton of practice problems from released AP exams you can find floating around the internet