What is the author's style in The Lying Game by Sara Shepard?

The story is presented in chronological order beginning with the moments following Sutton's death. The book is divided into thirty-three chapters with a prologue at the beginning of the book and an epilogue following the final chapter. The Prologue is an introduction of Sutton and her realization that she's dead. The Epilogue is Sutton's thoughts as she watches Emma go to sleep and hopes for new memories of her life and death - memories that don't come.