Hey as The Graduate Record Exam (GRE) is an exam taken by college graduates who are applying to graduate school

Here I am giving you list of some books

MGRE

The GRE Official Guide

Magoosh ebooks

General GRE eBook

The Ultimate GRE Guide

Vocabulary eBook

GRE Vocabulary Flashcards eBook

Math Formula eBook

GRE Big Book

Barron’s 1100 Book for Vocabulary, Magoosh Flashcards, Manhattan 500 Advanced Words

Syllabus

Analytical Writing
(One section with two separately timed tasks)

Verbal Reasoning
(Two sections)

Quantitative Reasoning
(Two sections)