Book excerpt: The Telangana State Biodiversity Board under the UNEP-GEF-MoEFCC-ABS Project title "Strengthening the implementation of Biological Diversity Act and Rules with focus on Access and Benefit Sharing" has prepared the Telangana State Biodiversity Field Guide comprising the flora and fauna of the Telangana State for identification of various species during the preparation of People's Biodiversity Registers for conservation and preservation of biodiversity. The scientific institutions, other Governments, and research organizations have helped to shape the biodiversity field guide through their contributions during various meetings, interactions as well as through their comments and inputs to finalize the book. The book comprising total 1881 species of Angiosperms (flowering plants) of Telangana State and incorporated the nearly 1000 photos of plants and updated the list using the plant data list. Also given the common names and Scientific names along with Telugu names (Vernacular names for most of the species). In fauna we have given the full details about the Invertebrates; including Prawns & Crabs, Odonates (Dragonflies & Damselflies), Moths, Butterflies, spiders, scorpions, Mollusks, Other invertebrates (Insects, grasshoppers, beetles etc.) and Vertebrates ; Fishes, Amphibians, Reptiles, Birds, Mammals, Domestic Animals etc. This book will helps for every individuals for identification of Biodiversity and especially researchers, academicians, scientific people, policy makers and all the line department Officials.