Two long-standing schools of thought have dominated discussion in grammar. The prescriptive school looks at the way the language ought to be used. Its adherents set out the rules of grammar as the standard to follow. The alternative, descriptive approach views language as living and evolving – language as it's used.
There aren't many household items that you can stack into a pile and make poetry out of. Coat hanger hymns? Mop bucket sonnets? Not so much. Books, on the other hand, lend themselves well to verse – after all, they do have words printed on their spines. Watch a video on how you can make your own Book Spine Poem for National Library Week.