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About Us

At Keystone Educational Publishers, we know the SAT.

For nearly two decades, we have been providing SAT lessons and practice tests to private test prep companies, to schools—nationally and internationally—and to individual SAT instructors. Our newest work, the SAT Study Guide, is a testament to the countless hours and hard work that our test researchers and curriculum creators have invested over the years. We have constantly committed ourselves to making the best SAT material in order to help students get the most out of their studying experience (as well as to assist tutors in understanding their subject matter completely).


We are confident that you will find our SAT and other prep materials to be the most thorough and complete, as well as more challenging than others and, thus, more useful in building the skills necessary for academic success. 

We welcome all questions and comments.

To contact us, click here. 

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