The models (15 in total) have real world scale. Every book is a seperate object (except, in the .ply-file they are joined together), but they are all grouped. The bottom of the objects is on the same level. The first two images show, how they are presented in the file (between each origin point lie 10 cm).
The given polygon and vertice count is for all objects together: one book consists of 8 vertices and 6 polygons.
Used texture and maps are included: one texture / diffuse map, one glossy map (invert for roughness) and one normal map. Each image measures 6048 x 8084 px. UVs are unwrapped and everything is named logically.
The following list, shows the books included (the publication year applies to the featured edition and there might have been earlier versions):
Do not hesitate to ask any questions.