The Macabre Of Bookbinding: Anthropodermic Bibliopegy

"Not too much about book history can be considered ghastly or morbid. But as you gear up for Halloween this year, don’t disregard the rumors lurking in the stacks: Some books throughout history were bound in human flesh. Anthropodermic bibliopegy, the academic term for books bound in human skin, fascinates many students and researchers around the world.  There are a handful of books living in universities, museums, and private collections across the globe with these rumors attached, and to the excitement of some — and the horror of others — several have been scientifically proven true: they are indeed bound in the flesh of humans."

http://bookbindersmuseum.org/the-macabre-of-bookbinding-anthropodermic-bibliopegy/