<p>Halliday is pretty good if you want to study in depth. I really think you have to be able to dedicate a lot of time (some of the chapters past the basics of electricity is rather difficult to understand), unless you are just naturally good at it! I do like the practice problems in there; I only wish that they could show the solutions for some of them. </p>
<p>However, if you are just trying to get a 5 on the AP test, you don’t need to study from Halliday. I was kind of deceived by my physics teacher that AP Physics B & C were going to be impossible ( he gave us problems from Halliday for homework + tests and told us that this is what the AP test will be like). I took a real AP practice test for the first time on Monday. It was so much easier than the stuff in Halliday. Seriously. So aside from Halliday, I would also suggest getting one of those AP study books. If you are on a time time crunch, it can really help! :)</p>