Addendum

There's a lot of talk in the book world about what the future of books will be.  Some fear that the physical book will disappear or become a niche collectible item, as has happened with vinyl records.  This question brings to mind the physical qualities which add charm and make books unique, such as inserts, and how much I will miss them, should they ever go away.

Recently, in handling a book, A Pictorial History of English Architecture, by John Betjeman, (published by John G. Murray, London, 1972), to my amusement the following printed card, about the size of a standard business card fell out of the pages:

Be careful when going to Australia!  It's always best to use the third person for authority and emphasis.

This card is a fine example of an addendum, thus defined by Wikipedia:

In a book, an addendum (sometimes referred to as an appendix, plural appendices) is a supplemental addition to a given main work. It may explain inconsistencies or otherwise explain or update the information found in the main work, especially if any such problems were detected too late to correct the main work. For example, the main work could have had already been printed and the cost of destroying the batch and reprinting is deemed too high. As such, addenda may come in many forms — a separate letter included with the work, text files on a digital medium, or any similar carrier. It may serve to notify the reader of errors present, as an errata.

It's interesting that digital books apparently may have addendum also.  I looked for the photos of the buildings offered as cautionary examples by the author of the above book, and they were in fact hideous.

On another note, I have been interviewed by the IOBA regarding my experience attending Rare Book School here: An Interview with Amy Candiotti, IOBA RBS Scholarship Winner

And Sean is mentioned in a SLOG post about the recent May Day protests in Seattle here:  Why All the Smashy-Smashy? A Beginner's Guide to Targeted Property Destruction.