Memories of a Teenage Amnesiac is a novel by the author of Elsewhere, Gabrielle Zevin. The story follows the main character, Naomi Porter, as she tries to put the pieces of her life back together after suffering from amnesia. When Naomi falls and bumps her head on the stairs of her high school, she wakes up without the memories of the past four years of her life. The doctors cannot find a medical reason for the loss of memory. Some of the doctors as well as Naomi and her physics teacher, believe she might be blocking out a traumatic experience that occurred during the four-year period. The story slowly reveals how Naomi has her pick of traumatic events to choose from.

The first thing Naomi sees when she wakes up after her fall is a handsome young man that is claiming to be her boyfriend as they wheel her into the ambulance. At the hospital, Naomi finds out the boy's name is James, but he is not really her boyfriend. Through interactions with her father, her best friend Will, and some of the other people in Naomi's life, she learns who she was prior to the accident. More importantly, however, Naomi develops into the person she wants to be.

One day, while riding in her new boyfriend, James's car, Naomi gets her memory back. She keeps it a secret, however, and continues to try to live her life the way she sees fit. This coming of age novel forces Naomi to deal with the normal and abnormal circumstances of being a teenager and making the transition into adulthood.