Stanislaw Lem wrote some very witty and unusual science fiction. If you haven’t read Tales Of Pirx The Pilot [amazon] or Memoirs Found In A Bathtub [amazon] you might enjoy them if you like quirky and thoughtful fiction.
Tales of Pirx The Pilot has one of the most memorable scenes in science fiction: Pirx, an astronaut in a space mishap, has to spend a prolonged period in his space suit – and discovers that there is a fly in his helmet.