What English author is known for a long series of novels that first started in 1971 and ended in 2015, where a portion of the novels focus on witches?
Witches (Discworld): A major subset of the "Discworld" novels of Terry Pratchett involves the witches of Lancre. Terry Pratchett: Sir Terence David John Pratchett, OBE (28 April 1948 – 12 March 2015), better known as Terry Pratchett, was an English author of fantasy novels, especially comical works. Terry Pratchett:  Pratchett's first novel, "The Carpet People", was published in 1971.
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