#1 NATIONAL BESTELLERWinner of the 2024 Women's Prize for Non-FictionFinalist for the 2024 National Book Critics Circle Award for CriticismShortlisted for the 2024 Hubert Evans Non-Fiction Prize (part of the BC and Yukon Book Prizes)ANew York TimesNotable Book of 2023Vulture’s #1 Book of 2023AGuardianBest Ideas Book of 2023Named a Best Book of the Year byThe Globe and Mail•TIME•Esquire•Slate•Harpers’ Bazaar•The Times • The New Republic•Toronto Star• CBC•The Boston Globe•Electric LitWhat if you woke up one morning and found you'd acquired another self—a double who was almost you and yet not you at all? What if that double shared many of your preoccupations but, in a twisted, upside-down way, furthered the very causes...