Whats the most reliable tool for Physics B?? Currently, I'm using The Princeton Review "Cracking the AP Physics B & C Exams" Edition 2006-2007 book. Is that a good source to extract information on?? What are some other reliable and straight foward sources (internet/book) that provide detailed and comprehensible information for a Sophomore in high school who has never taken calculus (Physics B). I need extra sources to brush up on some topics that my instructor has not gone over or has adumbrated. Thanks!