Mary Roach is the author of seven best-selling works of nonfiction, including Grunt, Gulp, Stiff, and, most recently, Animal, Vegetable, Criminal. Her writing has appeared in the Guardian, Wired, GQ, Vogue, National Geographic and more. She lives in California.
'We are all replaceable to some degree or another... with the exception of Mary Roach. There is no one and nothing like her – singular, bizarre, dedicated, passionate, fascinating. Her writing traffics at the unusual intersection of science, storytelling and humor. That is a very tricky intersection to navigate, and no one does it as masterfully or consistently as she. I devour everything she writes.' —Jason Alexander 'Mary Roach has had a more direct impact on my career than any other writer. She is her own genre of book – gonzo, hilarious, wildly educational. This is Roach at her finest.' —Daniel Kraus, author of Whale Fall 'In her brilliant (and brilliantly funny book) Replaceable You, Mary Roach explores the puzzle of the human body, the way we can assemble and reassemble the very human pieces into different versions of who we are and how we work. The result is intriguing, compassionate, wise and – as with all her books – addictively readable. Or to put this another way: Don't miss it.' —Deborah Blum, bestselling author of The Poisoner’s Handbook 'Mary Roach offers a fascinating tour of the wonderful world of regenerative medicine.' —TIME, The Most Anticipated Books of Fall 2025