"Expert System Technology: Development and Application" by Robert Keller is a 1987 hardcover book that delves into the world of expert systems, exploring their development and practical applications. The book, published by Prentice Hall PTR, offers 256 pages of insights on how these innovative systems can be designed and used to enhance decision-making processes in various fields. Written in English, this book is a valuable resource for anyone interested in the field of artificial intelligence and expert systems.