Free eBook $20 – GRE Prep by Magoosh (Graduate or Business School) by Lele and McGarry
Magoosh, an online test-prep company based in Berkeley, California. Magoosh gives students everything they need to make studying from their computers or mobile devices a breeze. The GRE prep offers over a thousand practice questions and video explanations, full-length tests, and hundreds of helpful lessons prepared by our dedicated tutors.
https://www.amazon.com/GRE-Prep-Magoosh-ebook/dp/B01MTEK77B/