This may seem like a morbid question, but I'm curious. Does the Smithsonian have any books bound in human skin in its collection? And if so, does the care of these books differ from that of books bound in more traditional materials?
Alas, we do not (that we know of!). But Harvard’s houghtonlib does. Check out their blog post about it here.
BTW, the term for binding in human skin is anthropodermic bibliopegy.