@sbourne Ha!
Funny enough I am not tempted by other leather books I have seen. They are retreads of what I already have. The only "new" volumes I have procured lately are e-books from scanned copies of very old volumes, so I can review the old methods of construction.
But I am in search of another something that will hold all my issues of Leather Crafter's Journal, a publication I subscribe to. Meanwhile I plan to bind these, like the books on the bottom shelf, by the year of publication.