You want a really weird ride? A science fiction or fantasy epic that stretches your brain like taffy and ties it into strange irregular shapes? Forget television or movies: books are where the really off-kilter stories are told in speculative fiction.

In honor of Banned Books Week, Geekosystem's Susana Polo looks at 10 great science fiction novels that have been banned, or at least threatened with removal from libraries and schools. Including some major classics of the genre!

Is Stranger in a Stranger Land by Robert Heinlein the Catcher in the Rye for the science-fiction set? Yes, I think you could say that about the 1962 Hugo winner in one important sense.

A single book can inspire a wide range of covers, and sometimes those covers can be works of art themselves. We look at some classic science fiction novels and the various covers they've worn throughout the years.

At 220,000 words, Heinlein's Stranger In A Strange Land is one of the most famous doorstoppers in science-fiction history. (There's an edited version, which loses about 60,000 words.) Now a biologist has explained it could be much shorter.