JoJo's Bizarre Adventure: Diamond Is Unbreakable - Chapter 1 Visual Book(ジョジョの奇妙な冒険 ダイヤモンドは砕けない 第一章 ビジュアルブックJoJo no Kimyō na Bōken: Daiyamondo wa Kudakenai Daiisshō Bijuaru Bukku) is an official picture album released for the Diamond Is Unbreakable film, featuring concept art, interviews and a behind-the-scenes look at the films production. [ This section requires expansion].