Books for copy editors:
The Best of Newspaper Design
Tim Harrower, The Newspaper Designer's Handbook, McGraw Hill
Ellis, Barbara. "The Copy-Editing and Headline Handbook"
Judd, Karen. "Copy Editing: A Practical Guide"
The American Heritage Book of English Usage
Bryson's Dictionary of Troublesome Words
The Columbia Guide to Standard American English
"Words on Words" by John B. Bremner
Descriptionary: A Thematic Dictionary, Marc McCutcheon
"The Elephants of Style" by Bill Walsh
"The Evasion English Dictionary"
"Garner's Modern American Usage" by Bryan Garner
The Handbook of Nonsexist Writing
New York Times style guide
Oxford Dictionary of Allusions
"The Oxford Dictionary of American Usage and Style"
Oxford Dictionary of Word Histories
The Reader Over Your Shoulder: A Handbook for Writers of English Prose, by Robert Graves and Alan Hodge.
Rodale's Synonym Finder
Burchfield, "The New Fowler's Modern English Usage"
Fiske, Robert Hartwell. "Dimwit's Dictionary; 5,000 Overused Words and Phrases and Alternatives to Them"
Hale, Constance. "Sin and Syntax"
O'Conner, Patricia T. "Woe is I; The Grammarphobe's Guide to Better English in Plain English"
Strunk and White. "Elements of Style"
Urdang, Laurence. "The Whole Ball of Wax"
Valentine, Tamara M. "Language and Prejudice"
Barbara Walraff's "Word Court"