A Complete Guide to Reptiles of Australia has been the most comprehensive field guide available on the subject since the first edition was published in 2003. As new species are discovered, known ranges extended, and higher quality images become available, updated editions of the book have been written to reflect these changes. This new edition adds 92 reptile species, mostly comprising new descriptions since the publication of the fifth edition, plus 10 species that come with the inclusion of Christmas Island and the Cocos (Keeling) Islands. This sixth edition of the book includes images, descriptions, and maps for all 1,109 species of Australian reptiles described up until the end of June 2020. Some of these are pictured in life for the first time, and many are represented by several images to depict geographical and sexual differences. The book features easy-to-use diagnostic illustrations to explain anatomical features, a comprehensive glossary, and the more significant reptile habitats are pictured.