Rare Book Videos
Erik Bosse of the Aldredge Bookstore has a number of short videos posted on YouTube, all worth viewing for a brief overview of a particular area of book collecting -- collecting autographs or signed books, evaluating the condition of rare books, terms used to describe collectible books, etc. For beginning collectors, it's a set of good introductions. Here's one on researching the value of books, through price guides and bibliographies.