I have found a few casually interesting things in books over the years: old newspaper ads or a library card. Notes written in the margins have been the most engaging thing I’ve found. In fact, I have my mother’s Bible with many marginal notes. (She passed away two years ago this month.) One of these notes marks Isaiah 41:9-10 as my Dad’s verse.

Laurie Hartzel of the Star-Tribune collected reader submissions for strange things they have found in books, including a vintage postcard, a banana peel, and a diamond ring.