The book “The Gap and the Gain” was written by Dr. Benjamin Hardy and Dan Sullivan. The book introduces a concept that allows high achievers to understand and change their progress. Throughout the book, the authors argue that many people measure their progress against an unattainable “ideal,” leading to unhappiness. This is “GAP”. But when we measure ourselves against our past, we are in “the GAIN”. This book consists of Self Help, Nonfiction, psychology and Business genres.