Five top books where insanity is normalized

Brian Evenson's latest book is The Warren.

One of his five favorite books where insane characters come to be taken for or treated as normal,as shared at Tor.com:Emmanuel Carrere, The Mustache

A simple plot. A man who has always worn a mustache shaves it off, planning to surprise his wife. But when he reveals his shaved face, she isn’t surprised at all. She says, “But you never had a mustache.”