Kunst & Papier Stitch Bound Hardcover Sketch Book - These books are stitch bound (not glue bound), allowing you to flip pages and spread the book out flat without having the binding crack. 112 acid free pages. The paper inside is off-white and weighs approximately 60 lbs. Made in Germany, with meticulous attention to quality and detail. These books are available in five different book cover colors (black, grey, yellow, red, or blue); our photo shows all five colors- but pricing is for one book only.