 After three years in print , The Cat in the Hat had sold nearly one million copies . By then , the book had been translated into French , Chinese , Swedish , and Braille . In 2001 , Publishers Weekly placed it at number nine on its list of the best @-@ selling children 's books of all time . As of 2007 , more than 10 million copies of The Cat in the Hat have been printed , and it has been translated into more than 12 different languages , including Latin , under the title Cattus Petasatus . In 2007 , on the occasion of the book 's fiftieth anniversary , Random House released The Annotated Cat : Under the Hats of Seuss and His Cats , which includes both The Cat in the Hat and its sequel , with annotations and an introduction by Philip Nel . 
