I find that the work SF/Fantasy author, Jack Vance is eminently re-readable, particularly the second book in his 'Dying Earth' series, 'The Eyes of the Overworld'. In this book the incorrigible rogue, Cugel the Clever, has a series of mis-adventures in the world of the far future - a world dominated by magic, magicians and monsters. This sounds like standard fantasy fare, but Vance was a pioneer in the field (the original 'Dying Earth' book was published c. 1950) and he has a unique style which I have always found highly addictive.