Science-fiction Books Without Explicit Sexual Content

The Mote in God's Eye

Unwind (Unwind #1)

I Have No Mouth and I Must Scream

Foundation and Earth

The Lathe of Heaven

Excession

WWW

Invisible Planets

Proxy

Galactic Derelict

The Weird

Some Desperate Glory

Moving Mars

Out of the Silent Planet

Childhood’s End

Midnight Robber

Octavia's Brood

After London

The Beasts of Tarzan (Classic Ace SF, F-203)

Drowned worlds

Wherever Seeds May Fall

Perdido Street Station

So long, and thanks for all the fish

Children of Dune