text: do gre prep classes really help? do you think i can do the same thing with a book? i am contemplating signing up for a gre prep class, but they are so expensive. i am kind of worried about my scores, so i'm just not sure. does anyone have any experience with the courses? what do you think? thanks. a book is good enough if you have the motivation and discipline to study regularly.  what a prep class does is give you structure to study regularly and do your work.  it's more about establishing a schedule than what they actually teach you in the class.