Looks at how people succeed and reach the top of their chosen sport and what it takes to be World Class. Includes information from basic aptitude and ability, to techniques, fitness, diet and more. Contains fascinating facts about all aspects of each sport. Includes case studies, photographs and diagrams. Features champions and competitors from around the world.
I've been having the hardest time finding books about gymnastics. All those (non-memoirs) in print are overwhelmingly aimed at children. This, at least, seems to be aimed at older children, rather than 5-year-olds.
A World-Class Gymnast is, as the title suggests, concerned with elite gymnastics. It covers both the basics (e.g. how gymnastics originated) and the not-so-basics (e.g. competitive scoring), with short, lucid explanations of most of the sport's facets. There are lots of pictures, too. For an eight-year-old boy or girl interested in gymnastics, it's a pretty good book.