Emanuel Schongut has illustrated book covers for a ton of science fiction, fantasy, and crime classics. This small collection of his 1960s covers perfectly captures the weird, hallucinatory feel of SF from that era.

Schongut is still working, providing illustrations for everything from book covers to the New York Times and children's books. You can see more of his amazing, eye-melting work on his website.

via A Journey Round My Skull