The book progresses by theme across chapters, first introducing the concept and significance of forgotten rules.
It then explores rules designed to increase scoring, enhance player safety, and those reflecting societal values of the time. Forgotten Sports Rules is unique because, rather than focusing on star athletes, it examines the often-overlooked world of rule changes and their impact on the sports themselves.
Drawing from rulebooks, newspaper articles, and player interviews, the book adopts a narrative tone, presenting information in an accessible and engaging way.