“The Stand” by Stephen King

“On the Beach” by Nevil Shute

“Oryx and Crake” and “The Year of the Flood” by Margaret Atwood

“The Age of Miracles” by Karen Thompson Walker

“The Drowned World” by J.G. Ballard

“World War Z” by Max Brooks

“The Last Man” by Mary Shelley

“A Canticle For Leibowitz” by Walter M. Miller Jr

“The Road” by Cormac McCarthy

“Blindness” by José Saramago

Of the books listed, I’ve only read The Road by Cormac McCarthy.  Breathtaking and thought-provoking stuff.  Most of the others look interesting, so I might check them out eventually.

I’ve read virtually all of Philip K. Dick’s work.  Some of his stories are set in post-apocalyptic times, and I’m surprised none made the list.