Robert Silverberg

The Second Science Fiction Megapack

The Third Science Fiction Megapack

The Living Dead

Downward to the Earth

The End of the World

Lord Valentine's Castle

Gilgamesh the King (Unabridged)

The Great Time Travel Collection 2: Twenty-Three Classic Journeys Through Time Where One Small Change Can Rewrite History

Timeless Time Travel Tales (Unabridged)

Lost Sci-Fi Books 301 thru 320: Robots, Time Travel, Alien Worlds and Visions of Tomorrow

1950s Science Fiction 6: Cold War Cosmos: 28 Tales of Fear, Fantasy, and the Far Beyond

Vintage Sci-Fi 6 - 21 Classic Science Fiction Short Stories from Philip K Dick, Isaac Asimov, Murray Leinster, Robert Silverberg, Harry Harrison and more