Writing Fiction for Dummies - by Randy Ingermanson and Peter Economy
Descriptionary - by Marc McCutcheion - A Thematic Dictionary for when you know what it is, but not what its called.
Your First Novel - by Ann Rittenberg and Laura Whitcomb - A published author and a top agent share the keys to achieving your dream
These have been informative to me, and I get no kickbacks for the sale of these items, I simply use them myself and wanted to share that information with my blog readers. Even if you have already published before, these books are great resources for making what you do