A Complete Guide to Reese Witherspoon's Hello Sunshine Book Club Picks

"The Paper Palace" by Miranda Cowley Heller ($13)

• What it's about: 50-year-old Elle's life suddenly veers off course when she sleeps with her lifelong best friend — who, like her, is married to someone else. From there, she's forced to question if she wants to keep the life she knows or risk a different path.
• What Witherspoon says: "'The Paper Palace' is a deeply emotional love story that follows one day in the life of Elle Bishop as she navigates the unraveling of secrets, lies and a very complex love triangle between her childhood best friend and her husband."