I found a most excellent book at the library the other day— The Elements of Style, by William Strunk and E. B. White.
It’s quite dry, of course, and rather slow and dull to read. However, the advice, or rather instructions, for utilizing the English language contained in it is priceless. The book explains a great deal about how to write (and speak) correctly. For instance, it begins by telling you, that one must write “Burns’s poems”, and not “Burns’ poems” (I quoted the book).
I believe it’s out of print now, but you may be able to get it from your library (or request it if they don’t have it). You could also find it used, in all likelihood. Enjoy!