Kurt Vonnegut was a compulsive doodler — and at least some of his books contain the author's weird illustrations. Including, famously, his anus. But now, a new book collects many of his doodles — some of which are kind of unnervingly weird.

The Guardian has a complete collection of Vonnegut art — head over there to see more images, plus explanations of each image and what it means. Here are a few of the trippiest: