Not only is The Natural History of the Oak Tree a comprehensive guide to one of the world's most recognizable trees, it is also a detailed exploration of a complete ecosystem. Richard Lewington's artworks depict the birds, mammals, insects, plants and fungi that depend on the oak, and upon which the tree itself relies for pollination and growth. In addition, the book observes the changes of the seasons and their effects upon the tree and the organisms that depend on it. Contents covered include: the pedunculate oak; the sessile oak; from acorn to seedling; birds in the oak; mammals; butterflies and moths; spiders; lichens and mosses; leaf litter.