Little Cats provides information about various cat species through a letter-themed organization. It covers the classification, family tree, traits, behaviors, and habitats of cats such as jaguars, cheetahs, leopards, house cats, fishing cats, and cougars. Key details include that cheetahs are the fastest land animal and can reach 64 mph, jaguars prey on large animals like capybara in tropical rainforests, and leopards have distinctive rosette spots covering their bodies. The document conveys information about cats in a simple, alphabetical format.