Vol. 4 of Dollish-G, an adult coloring series by Nelco neco. It is a set of loose coloring sheets, not a bound book. The theme is doll-like girls in girlish fashion and outfits.
The set has 5 A4 sheets with 5 different line drawings, plus a color sample. The sheets use special coloring paper, and the lines do not bleed with colored pencils, watercolor paints or alcohol markers. Alcohol markers show through to the back of the sheet, and watercolor with a lot of water can warp the paper.
Translated from the Japanese original.