Complex sentence: Bertie Wooster is the central figure in all but one of Wodehouse's Jeeves stories and novels, which were published between 1915 and 1974.
Split into simpler sentences: Bertie Wooster is the central figure in the "Jeeves" stories and novels. He appears in all but one of Wodehouse's Jeeves stories and novels, which were published between 1915 and 1974.