The Great Brain series of books written by John D. Fitzgerald in the 1960's and 1970's is one of the true classics of children's literature. This fictional series is based on some of the true life experiences of the author as he grew up in "turn of the century" Utah. John's real life older brother Tom truly had a "Great Brain" and a "Money Loving Heart", which serves as the basis for these exciting and delightful tales. These books are outstanding for all ages. Please enjoy the information on this site, especially all of the illustrations by the incomparable Mercer Mayer.