These two postcards are the front and back of a free postcard that came out around the time of book #27. Click each for a larger view.

The next set is the front and back of a free postcard that came out around the time of book #31. It was also featured in the back of book #31. Click each for a larger view.

These are the front and back of a free postcard that came out the time of MM1. It was found as a free take-one at a local bookstore. Click each for a larger view.

These are pictures of the front and back of a card that you could send to your bookstore the reserve a copy of HBC. It came out around the time of Book #21.

This was given free around the time of book #18. It is a card that you give to your book-seller to reserve a copy of MM2.