What is the name of the book that was written by the author of Metamagical Themas?
Metamagical Themas: Metamagical Themas is an eclectic collection of articles that Douglas Hofstadter wrote for the popular science magazine "Scientific American" during the early 1980s. Douglas Hofstadter:  Hofstadter's book "Gödel, Escher, Bach: An Eternal Golden Braid", first published in 1979, won both the Pulitzer Prize for general non-fiction
Gödel, Escher, Bach: An Eternal Golden Braid