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Dr. John Michael Crichton (born October 23, 1942) is an author of science fiction novels and producer of films and television programs. His genre can be best described as techno-thriller which is usually the marriage of action and technical details. Crichton received an M.D. degree from Harvard University's Medical School. While in medical school, he wrote novels under the pen names John Lange and Jeffery Hudson.
He is perhaps best known for writing Jurassic Park (1990) and The Andromeda Strain (1969), and has written many other books based on scientific themes. He also is the creator and executive producer of the television drama ER.
His other books include Prey (2002), dealing with a swarm of nano-robots out of control; Congo, about the search for industrial diamonds and a new race of gorillas; and Timeline, dealing with space-time travel and the 14th century.
Among his non-fiction works is Travels, which contains autobiographical episodes.