When Sarah Dessen finished her 12th book, the critically acclaimed author of young adult fiction didn’t know if she had another novel in her. But while watching her two babysitters plan weddings, Dessen began to think about the different ways people come together in the world, and what it would be like, as she says, to see the process again and again, from a wedding planner’s perspective. That lead to her new novel, Once and for All (Viking Books for Young Readers, June 2017), a bubbly story about Louna, the cynical daughter of a wedding planner, and what happens when she meets a charming, serial dater who decides she’s the girl he wants. Baker & Taylor spoke with Dessen.