"Engines of Creation" is a book written by K. Eric Drexler in 1986 that explores the concept of molecular nanotechnology. It discusses how tiny machines, or nanobots, could manipulate matter at the molecular level, potentially revolutionizing manufacturing, medicine, and various industries. The book also raises ethical and safety concerns regarding the development of such technologies. Drexler emphasizes the importance of responsible research and the need for regulations to prevent misuse. Overall, "Engines of Creation" serves as a foundational text in the field of nanotechnology and encourages thoughtful consideration of its implications.