5 Steps to a 5: AP Biology 2021

I bought this for my daughter who is hard to please when it comes to certain studies, but she loved this book. Take that for what it's worth i guess.

First of all, thank you to the seller. Delivery was very fast from ordering to receiving this book. This book is really good. It explains the relevant knowledge points in detail and has exercises. I am self-taught, so this book is very helpful to me. More importantly, I hope it will let me pass the exam smoothly. I would also recommend it to everyone.