Coach Renner has called plays for 30 years, 23 years as a head coach. He finished his 30-year coaching career with a consecutive game touchdown scoring streak of 141 games, a span of 13-years. During that time his offenses averaged 31.1 points per game and 6+ wins per season. These things were achieved at four different high schools in two different states. And, all four teams became winning playoff teams. Coach Renner used the same method of reading a football defense to call his plays during those 13-years. In this book, How to Read a Football Defense, Coach Renner explains the process of dividing the defense into three parts to read the best area to attack. He uses over 75 diagrams and pictures to show you the common defensive alignments that you must know to be able to read a defense. He explains the role your choice of formations has on how the defense aligns and how that contributes to easily reading the defense. Coach Renner gives you a clear and concise order of how to read a defense to determine the best run or pass play to attack a defender. He details how to read the defensive line, the linebackers, the corners, and the safeties. He gives you specific alignment clues that tell you when to expect a linebacker blitz, a corner blitz or a safety blitz. He also explains how to determine the first level, second level and third level of the defense and what changes in those give you indicators of stunts and blitzes. When you finish reading Coach Renner's book you will have a good understanding of how to simplify reading a football defense. It will make you feel comfortable reading, calling and designing plays on game day that take advantage of a defender's and a defensive alignment.