Know your punctuation marks. Learn the differences between a colon and a semicolon, and understand common punctuation errors like comma splices, misused apostrophes and over-punctuation.

June Casagrande is the author of “The Best Punctuation Book, Period.” She can be reached at [email protected]. Support our coverage by becoming a digital subscriber.

The Creative Penn: “How Writers Use Punctuation To Great Effect” Om Proofreading: “6 Reasons Why Punctuation Is Important (with Examples)” ...