Overpopulation

Brave New World and Brave New World Revisited

Aldous Huxley

Cinder

Marissa Meyer

The Caves of Steel

Isaac Asimov

Blue Mars (Mars Trilogy)

Kim Stanley Robinson

The Wanting Seed

Burgess, Anthony

The tower and the hive

Anne McCaffrey.

Make Room! Make Room!

Harry Harrison

The Crack in Space

Dick, Philip K.

The world inside

Robert Silverberg.

Countdown: Our Last Best Hope for a Future on Earth?

Alan Weisman