a selection of covers (and one inside cover) from used fantasy/sci-fi books, I don't know what's best:

how Extremely Naked Shadows of Hell is

"But when New Kashubia combined virtual reality with tank warfare, giving its warriors a close symbiosis with their intelligent tanks, neither war nor the galaxy would ever be the same. Not to mention sex..." Immediately followed by the glowing recommendation

Is the photoshopped T-Rex meant to be a dragon, or is it Thongor himself? And what is the downed plane doing?

The ESP Worm, notably not a worm

Dog Wizard, a title that really makes you picture some guy in armor fighting a dragon