Here are chapters 2 through 4 of William Zinsser's On Writing Well, a classic book on, well, writing well. Just start with the opening of chapter 2 and keep going:

Clutter is the disease of American writing. We are a society strangling in unnecessary words, circular constructions, pompous frills and meaningless jargon.

Remind you of any computer manuals you've read recently? (Hopefully it does not remind you too much of WanderingThoughts. I try, but I know I have a long way to go.)

On Writing Well itself can be gotten from the online bookseller of your choice. (My choices are Canadian.)

(From a comment on a Slashdot article about writing.)