Fantasy writer Terry Pratchett, 66, creator of the Discworld series and author of more than 70 books, has died.

Mr. Pratchett, who suffered from a rare form of early onset Alzheimer's disease, had earned wide respect in Britain and beyond with his dignified campaign for the right of critically ill patients to choose assisted suicide. Transworld Publishers said he died Thursday at his home, "with his cat sleeping on his bed surrounded by his family."

Mr. Pratchett was best known for Discworld, a series of more than 40 comic novels set in a teeming fantasy world. He has sold more than 65 million books worldwide, and his novels have been translated into several dozen languages. - AP