The common European adder (Vipera berus) is found throughout Europe and northern Asia. Despite its widespread distribution, and its notoriety as one of Europe's few truly venomous snakes, very little is known about its private life. Rodger McPhail, the celebrated wildlife artist, has had a life-long fascination with adders. He has been observing and photographing them on his local moor in Lancashire for many years. His unique collection of photographs reveals adders as never before seen and his succinct text offers an insight into this fascinating reptile.