The book starts off with a little chronology of the games, includes release dates, systems, etc. Then what appears to be a few pages about the spin-off titles; it's all in Japanese, I have no idea what it reads. But the next part is probably the most important and doesn't need language, the art. This includes all the art for every character (alternate costumes, forms, etc.), NPC, enemy, Chirper Avatar, Cutscene CG, everything, from the original PS3 Hyperdimension Neptunia all the way to Megadimension Neptunia VIIR.

This is the ultimate addition for any Neptunia fan.