In 'Is Mars habitable?', Alfred Russel Wallace delves into the realm of astrobiology, exploring the possibility of life on the Red Planet. Written in a clear and concise style, the book presents a scientific analysis of Mars' environmental conditions and their potential to support life. Wallace incorporates his expertise in natural selection and evolution to make compelling arguments about the habitability of Mars, drawing on contemporary scientific knowledge to support his claims. This work stands as a significant contribution to the field of astrobiology, offering a fresh perspective on the search for extraterrestrial life. Alfred Russel Wallace, a British naturalist and explorer, was a contemporary of Charles Darwin and co-discoverer of the theory of evolution by natural selection. His inquisitive mind and passion for scientific inquiry led him to study a wide range of topics, including biogeography and anthropology. Wallace's curiosity about the cosmos and life beyond Earth likely inspired him to write 'Is Mars habitable?', reflecting his ongoing fascination with the mysteries of the universe. For readers interested in astrobiology, Mars exploration, and the intersection of science and philosophy, 'Is Mars habitable?' is a must-read. Wallace's insightful analysis and thought-provoking arguments offer a compelling perspective on the possibility of extraterrestrial life, making this book a valuable addition to any scientific library.