'One of Us' by Åsne Seierstad is a harrowing and deeply researched account of the life of Anders Breivik and the devastating acts of terror he perpetrated in Norway on July 22, 2011. Seierstad, an accomplished journalist, delivers a compelling narrative that begins with Breivik's affluent Oslo upbringing and traces his descent into right-wing extremism. The book painstakingly reconstructs Breivik's bomb attack in Oslo and his subsequent mass shooting at a youth camp on Utøya Island, where he murdered 69 people, most of whom were teenagers. Seierstad provides intimate portraits of Breivik's victims, capturing their lives and dreams before the massacre. The narrative continues through the aftermath of the tragedy, exploring the nation's struggle for understanding and the intense legal process that raised questions about Breivik's mental health and the failures that allowed him to carry out such large-scale violence. 'One of Us' is more than just a true crime story—it's a poignant examination of extremism, national trauma, and the resilience of a society in the face of terror.