Ebook: Grammar Crammer: How to Write Perfect Sentences (Study Smart Series)

This handy book full of correct and incorrect usages shows you "how to." It is quick and easy to use. It will, however, not come up with all the answers you need. My biggest disappointment was to note that although it was printed in 2003, it appears not to be an update from the original 1982 edition. Still, it is ahead of most of us.