I purchased this book to help review for the Army AFAST test. The price was around $80 and that for a book in used but very good condition. I have no idea why the price was so high as on the back cover was printed a price of around $27. But $80 was the going rate everywhere I checked for used. New was much higher. So for that money you get a book that explains the test well but in the practice test section the answers given are incorrect 25% of the time. I found that to be unacceptable.