Along with Adam Anderson, I co-wrote a prep book for the Physics GRE, “Conquering the Physics GRE.” The revised Third Edition is published by Cambridge University Press and available on Amazon as well as brick-and-mortar bookstores. Our website has errata sheets and some other useful information.

The format of the GRE has changed since we wrote the book (in particular, the test is now fully computer-based and the number of questions -- and hence the time pressure -- is reduced), but we still think the book is an excellent summary of the undergraduate curriculum in physics. For undergraduates applying to graduate school in the US, the GRE may still be required, so you might find this book useful. For anyone applying to PhD programs, this material also serves as a good summary of the material typically covered on written prelim exams.