The creation of this book resulted from over ten years of experience working with numerous students on the SAT Math Level 2 Subject test. Having used numerous texts and resources to prepare students for the test, I was well aware of the shortcomings that each source exhibited. I always had to rely on 2-3 books at a time to ensure that my students were well prepared. There was no single source that provided a complete and in-depth study guide to prepare for the test. My goal was therefore to create a comprehensive study guide that covered all the topics being tested. The materials in this book are well organized, and aim to provide students with an easy-to-follow study guide that will enable them to gauge their progress as they move from one unit to the next. The first chapter contains critical strategies that each student needs to master in order to outperform his/her own expectations. The rest of the topics are divided into 9 chapters that include basic concepts, formulas, and examples. At the end of each chapter is a chapter review that contains a lot of practice problems necessary to test your understanding of the concepts learned. It is my belief that practice makes perfect, and through hard work, dedication and rigor, every student can be successful. Having attended Stanford University, and worked with numerous students in college admissions counseling, I know how competitive the college admissions process has become. Students need to garner every inch of advantage to distinguish themselves from the rest of the application pool. The SAT Subject Tests provide such an avenue. Although most colleges do not require subject tests, subject tests are usually highly recommended. It is my greatest hope that this book will provide a great resource to each student studying for the Math Level 2 test. I would welcome any comments, suggestions or questions you may have via email to ondago@gmail.com. In addition, please feel free to email me with regards to any errors you may encounter while using the book. Your feedback will be highly valuable in updating and the completion of any future editions of this book.