Amphibian Evolution : The Life of Early Land Vertebrates, Paperback by Schoch, Rainer R., ISBN 0470671785, ISBN-13 9780470671788, Brand New, Free shipping in the US

This book focuses on the first vertebrates to conquer land and their long journey to become fully independent from the water. It traces the origin of tetrapod features and tries to explain how and why they transformed into organs that permit life on land.