The Subversive Copy Editor
Saller, C. F. (2016). The subversive copy editor (2nd ed.): Advice from Chicago (or, how to negotiate good relationships with your writers, your colleagues, and yourself). University of Chicago Press.
Read Chapter 5: The Misguided Martyr; or, Laying Down Your Life for the Serial Comma
Chapter 13: The Zen of Copyediting
These chapters address the copyeditor’s sometimes obsessive attention to detail, and help put it in perspective. Heated grammar battles may rage across a newsroom or editorial office. Sometimes it helps to remember that grammar is seldom a life-or-death issue.