That's it!
For more information see How the Wish List Works
Note: A book must be currently UnPosted (= unavailable to request) at PBS to be added to your Wish List.
Note: The book (ISBN) must be known to the PBS database.
Note: There is a limit of 100 items on each A la Carte member Wish List; Limited Membership expands the limit to 200; Standard Membership expands the limit to 500.
Related Links:
What is the Wish List?
How the Wish List Works
Managing your Wish List
How do I add a book that is not in the database to my Wish List (or other list)?
I can't add a book to my Wish List!
What is the Club Wish List?
Posting/Sending a Wish Listed book
About non-ISBN items at PaperBackSwap