Okay, the title may be misleading, but I am a fan of libraries so bear with me. This is just to post books that help me write. Things that have inspired, or are just reference I would recommend to anyone.
Poemcrazy: freeing your life with words by Susan Goldsmith Wooldridge [this books is what started me on free form poetry. It's also what started me in collecting words. For a poetry, I would highly recommend this.]
World Book Encyclopedia [okay, mine are from 1962, so they are lacking in some information, but I still love them.]
Writing Romance by Vanessa Grant [I don't actually own this, but I borrow it frequently from my public library]