Years ago I borrowed this copy of Italo Calvino’s If On A Winter’s Night A Traveler from my father-in-law, and when I opened it up I found Calvino’s 1985 NYTimes obit and stories from a 1983 Harper’s.I was so surprised and delighted by these unexpected artifacts that I decided to start saving clippings in my own books.

via How to turn your books into time capsules – Austin Kleon

I love this idea. Even better is that issues of Incredible Doom come with artifacts of their own right from the start.