Jon Ronson is fascinated by madness, extraordinary behaviour and the human mind. He has spent his life investigating crazy events, following fascinating people and unearthing unusual stories. Collected here from various sources (including the Guardian and GQ America) are the best of his adventures.

Them began as a book about different kinds of extremists, but after Jon had got to know some of them - Islamic fundamentalists, neo-Nazis, Ku Klux Klansmen - he found that they had one oddly similar belief: that a tiny, shadowy elite rule the world from a secret room. In Them, Jon sets out, with the help of the extremists, to locate that room. The journey is as creepy as it is comic, and along the way Jon is chased by men in dark glasses, unmasked as a Jew in the middle of a Jihad training camp, and more.

In 1979, a secret unit was established by the most gifted minds within the US Army. Defying all known accepted military practice - and indeed, the laws of physics - they believed that a soldier could adopt the cloak of invisibility, pass cleanly through walls and, perhaps most chillingly, kill goats just by staring at them. Entrusted with defending America from all known adversaries, they were the First Earth Battalion. And they really weren't joking. What's more, they're back and fighting the War on Terror.

'But Hillary is a known Luciferian,' he tried. 'She's not a known Luciferian,' I said. 'Well, yes and no,' he said. In The Elephant in the Room, Jon Ronson, the New York Times best-selling author of The Psychopath Test, Them, and So You've Been Publicly Shamed, travels to Cleveland at the height of summer to witness the Republican National Convention.

Traumatized by the bombing of Dresden at the time he had been imprisoned, Pilgrim drifts through all events and history, sometimes deeply implicated, sometimes a witness. He is surrounded by Vonnegut's usual large cast of continuing characters (notably here the hack science fiction writer Kilgore Trout and the alien Tralfamadorians, who oversee his life and remind him constantly that there is no causation, no order, no motive to existence).