Thanks for the question! These new books, which you discovered on amazon, will be for sale starting May 31 (though you can pre-order on amazon).
The Advanced GMAT Quant book contains over 200 new problems, all based on difficult 700+ level quant questions, and delves into a lot of strategy for tackling these tough quant questions. It assumes that you're already scoring in the 70th percentile on the quant portion of the test, and that you are already comfortable with the material covered in our five quant guides. It works through topical nuances or obscure principles, and helps you to to break down problems with complex structures. All the questions are new for this book, and the material goes above and beyond what is covered in our
Advanced Quant Workshop.
The Foundations of GMAT Verbal book is designed to provide you with the nuts and bolts, the foundational knowledge and skills you'll want to master before tackling tougher verbal concepts. If you've been studying for the GMAT and struggling, or if you haven't really begun yet because you know you'll need extra help on verbal, then this book is for you.
Stay tuned for more information!
Best,
Matt Mapplebeck
Student Services Associate
Manhattan GMAT