AP Prep Books

Hey I am going into three APs next year (AP Bio, AP World, AP Spanish) and I wanted to know what were the best and most accurate prep books for those three APs. I want to get it over the summer so that I can look over it and see how I feel with the type of subject material in case I want to switch out or anything. I know that the AP Bio exam is changing the format so any ideas on that? Just any AP book recommendations are awesome. Thanks!</p>

AP World I used PR and received a 5. The test was fairly easy for me and I had a pretty good teacher.
Spanish I used Barron’s. It’s harder than the actual exam. But it will definitely prepare you.</p>