Robert W. Hansen is an affiliated researcher with the Museum of Vertebrate Zoology at the University of California, Berkeley, and served as editor of the Herpetological Review from 1991 to 2021. Jackson D. Shedd is a scientific illustrator, herpetologist, wildlife photographer, and independent researcher. He is a departmental associate with the San Diego Natural History Museum.

"This book stands as a definitive field guide and a significant contribution to the broader understanding of California’s herpetofauna. Through its comprehensive approach, the content aids in the conservation management, and study of these fascinating species, making it mandatory reading for anyone engaged in the scientific exploration of California’s amphibians and reptiles."---Lydia Allison Fucsko, The Quarterly Review of Biology

Robert W. Hansen is an affiliated researcher with the Museum of Vertebrate Zoology at the University of California, Berkeley, and served as editor of the Herpetological Review from 1991 to 2021. Jackson D. Shedd is a scientific illustrator, herpetologist, wildlife photographer, and independent researcher. He is a departmental associate with the San Diego Natural History Museum.

"This book stands as a definitive field guide and a significant contribution to the broader understanding of California’s herpetofauna. Through its comprehensive approach, the content aids in the conservation management, and study of these fascinating species, making it mandatory reading for anyone engaged in the scientific exploration of California’s amphibians and reptiles."---Lydia Allison Fucsko, The Quarterly Review of Biology

Robert W. Hansen is an affiliated researcher with the Museum of Vertebrate Zoology at the University of California, Berkeley, and served as editor of the Herpetological Review from 1991 to 2021. Jackson D. Shedd is a scientific illustrator, herpetologist, wildlife photographer, and independent researcher. He is a departmental associate with the San Diego Natural History Museum.

"This book stands as a definitive field guide and a significant contribution to the broader understanding of California’s herpetofauna. Through its comprehensive approach, the content aids in the conservation management, and study of these fascinating species, making it mandatory reading for anyone engaged in the scientific exploration of California’s amphibians and reptiles."---Lydia Allison Fucsko, The Quarterly Review of Biology