"El gen / The Gene: An Intimate History" is a book written by Siddhartha Mukherjee that explores the history and impact of genetics. The book delves into the evolution of genetic science, from its early roots to the present day, examining the individuals and discoveries that have shaped our understanding of genetics. Mukherjee discusses the ethical and social implications of genetic research, touching on topics such as eugenics, genetic engineering, and the potential for personalized medicine. He also provides personal anecdotes and stories to humanize the complex science of genetics. Overall, "El gen / The Gene: An Intimate History" offers a comprehensive and thought-provoking examination of genetics, shedding light on its profound influence on society and the future of humanity.