Book Spine Poetry

About a week ago I stumbled upon book spine poetry and am just flabbergasted.  How did this exist without me knowing???  I've saved some pics and I've made a few of my own and I'm going to issue a challenge, not just to our library members, but to everyone I know.  It will be......"the ongoing book spine poetry challenge" with no real end in sight.  I just want to be inspired, inspire and see what happens!  Here's what started me and a couple of my own.  And the challenge will be thrown out soon......