The Community and Enterprise Preview Editions are also now available on evaluation.intersystems.com

Was having trouble finding the information on the implementCCR routines - do you have suggestions for best way to search through the docs?

So just to confirm there is no good way to remove a book once its been given a reserved slot.  The best thing to do is either ignore it if it becomes irrelevant like many books do in people bookshelves or to identify it as out of use.