One ofReal Simple’sBest Books of the Year“I loved this book. . . . Funny, heartbreaking and clever with a mystery at its heart.” —Jojo Moyes“With an eye as keen for human idiosyncrasies as Miranda July’s, and a sense of humor as bright and surprising as Maria Semple’s, this is a novel of pure velocity.”—Publishers Weekly(starredreview)Twenty years ago, Abigail Sorenson’s brother Robert went missing one day before her sixteenth birthday, never to be seen again. That same year, she began receiving scattered chapters in the mail of a self-help manual, the Guidebook, whose anonymous author promised to make her life soar to heights beyond her wildest dreams.The Guidebook’s missives have remained a constant in Abi’s life—a befuddling yet oddly comforting voice through her family’s grief over her brother’s disappearance, a move across continents, the devastating dissolution of her marriage, and the new beginning as a single mother and café owner in Sydney.Now, two decades after receiving thos