The cool thing is that you view things through his eyes, including a few incidents mentioned in Fire, where the protagonist is a woman. As you can imagine, these two characters often view the same situation through very different lenses.
Here's a summary of the book:
Jimmy Groome never really believed that his life was worth anything. An overweight and unpopular teen, it takes a suicide attempt to bring a traumatic childhood experience into sharp focus. With some encouragement from family and a counselor, Jimmy picks up a guitar and it quickly becomes obvious that he has a natural talent. After losing weight and joining a band, Jimmy goes from being a shy and insecure child to an outgoing and self-destructive young adult. In a world where sex, drugs and rock n' roll goes hand in hand Jimmy’s future is uncertain.
In this prequel to Fire, we follow Jimmy Groome on his dark path, where he decides if he'll ignite the fire inside - or if he’ll let it burn out and fade away.