"#1 New York Times bestselling author Fredrik Backman, who "captures the messy essence of being human" (The Washington Post), returns with an unforgettably funny, deeply moving tale of four teenagers whose friendship creates a bond so powerful that it changes a stranger's life twenty-five years later. Most people don't even notice them-three tiny figures sitting at the end of a long pier in the corner of one of the most famous paintings in the world....

A.J. and his friends get a Personal Digital Assistant named Miss Porter as a substitute teacher, who can order pizza and tell endless jokes, but grows power-hungry when her system is changed and tries to take over Ella Mentary School.