|Date released||May 19, 2006|
|Where found||"Send Mail" button, Penguin Mail interface|
The Postcard Catalog was a catalog in Club Penguin. It was used to send postcards to other players, and could be opened via the "Send Mail" button in another player's player card, or through the Penguin Mail interface.
The catalog consisted of several pages — sorted by the subject of the postcards — each contained up to 6 different postcards. The catalog was usually updated once a week; sometimes with only a minor change in the order of postcard, and sometimes having brand new or returning postcards.
- Whenever a stage plays was replaced, a postcard related to the new play was added to the catalog.
- There have been several postcards with gifts inside them.