The Great Depression of 1990 is a book by Ravi Batra in the field of economic history and future evolution, originally published in 1985. The book's original title was Regular Cycles of Money, Inflation, Regulation and Depressions. MIT Economics Professor Lester Thurow wrote a favorable introduction for the book with its original title. Retitled, the book entered the New York Times Best Seller list in early 1987 and reached #1 later that year. The book and its sequel, Surviving the Great Depression of 1990, made Batra "one of the best selling economists of all time."