Thank you for picking up a copy of Foundations of GMAT Math. Think of this book as the foundational tool that will help you relearn all of the math rules and concepts you once knew but have since forgotten. Its all in here, delivered with just the right balance of depth and simplicity. Doesn’t that sound good?

As with most accomplishments, there were many people involved in the creation of the book you’re holding. First and foremost is Zeke Vanderhoek, the founder of Manhattan GMAT. Zeke was a lone tutor in New York when he started the company in 2000. Now, eleven years later, the company has Instructors and offices nationwide and contributes to the studies and successes of thousands of students each year.

Our Manhattan GMAT Strategy Guides are based on the continuing experiences of our Instructors and students. For this Foundations of GMAT Math book, we are particularly indebted to a number of Instructors, starting with the extraordinary Dave Mahler. Dave rewrote practically the entire book, having worked closely with Liz Ghini Moliski and Abby Pelcyger to reshape the books conceptual flow. Together with master editor/writer/organizer Stacey Ko- prince, Dave also marshalled a formidable army of Instructor writers and editors, including Chris Brusznicki, Dmitry Farber, Whitney Garner, Ben Ku, Joe Lucero, Stephanie Moyerman, Andrea Pawliczek, Tim Sanders, Mark Sullivan, and Josh Yardley, all of whom made excellent contributions to the guide you now hold. In addition, Tate Shafer, Gilad Edelman, Jen Dziura, and Eric Caballero provided falcon-eyed proofing in the final stages of book production. Dan McNaney and Cathy Huang provided their design expertise to make the books as user-friendly as possible, and Liz Krisher made sure all the moving pieces came together at just the right time. And theres Chris Ryan. Beyond provid ing additions and edits for this book, Chris continues to be the driving force behind all of our curriculum efforts. His leadership is invaluable.

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