This textbook, the first true SAT Encyclopedia in history, represents the hard work and combined talents of five gifted educators. Between us, we have scored perfectly over 200 times(!). Think about that. Right now, only about one in 4000 score 1600 ( about 700 out of 2.8 million test-takers). When the Editor-in-Chief first scored 1600, long before "re-centering", it was more like one in 100,000! We think this is significant. In our learning centers, students often come to us having already achieved a top 1% score (1450+). We are able to help such talented students substantially because we can tell them from experience how to make the difficult climb toward a 1600. While only 2 or 3 of our students actually achieve a 1600 each year, many do score in the 1500+ range, and receive acceptance into such schools as Harvard, Princeton, Yale, MIT, Stanford, etc. This is not a high-tech book. The SAT is a test of basics and fundamentals. By my own choice, I have made many of the comments and corrections by hand, rather than by machine. I think this makes the book more real and readable. While this is an expensive work, its cost is less than the cost of a half hour Private Tutoring with Prof. Fikar. In return you will be provided with material to enrich you for hundreds of hours.