“Studying for the GRE can be overwhelming! This book is long because it contains all the information you need to ace the exam, but not every student needs to study every chapter in equal detail. Here are some suggestions for how to use this book. The Physics GRE is a test of outside knowledge, so some memorization is inevitable. However, we have made a concerted e ort to separate equations which are only used in speci c worked examples from equations which are worth remembering for the test. The only equations worth remembering are given equation numbers and are included in the Equation Index at the back of the book along with the page number where they appear; anything else you can safely forget for test day. This is still quite a long list, so rather than memorize each equation, check out Chapter 9 for suggestions on how to reduce your memorization workload by deriving more complex equations from more basic ones”