Squirrels : 12

Originally published between 1948 and 1971, the New Naturalist monographs focused on single species or related groups, offering the same high standards as the main series in a more compact format. Each volume of approximately 50,000 words was designed to provide an accessible yet authoritative exploration of its subject. Like all books in the monograph series, this edition features the stunning, distinctive cover illustrations by artists Clifford and Rosemary Ellis that helped inspire an entire generation of nature enthusiasts. Produced from an original copy by William Collins, it represents a treasured piece of natural history publishing from the longest-running and arguably most influential series of its kind in the world.