Official art book of Made in Abyss (メイドインアビス) a manga series written and illustrated by Akihito Tsukushi. This article includes 3 different books with sketches of the manga and the animation series and also interviews with the team of animators.
This manga is the story of Riko, an orphaned girl who lives in the town of Orth. Very close to this place, there is a giant hole known as the abyss, which connects the surface of the earth with its centre. In this hole, there are artifacts of an old civilization that Cave Raiders try to find. Riko's goal will be to be the best Cave Raider like her mother was in the past.