List of words you should erase (or at least reconsider).
On writing well, by W. Zinsser.
The sense of style, by S. Pinker
The elements of style, by W. Strunk and E.B. White.
Style: lessons in clarity and grace, by J. Williams and J. Bizup.
Articles and blog posts
Economical writing, by D. McCloskey
Writing tips for Ph.D. students, by J. Cochrane.
How to write well, by G. Mankiw.
Style guide, by The Economist.