Stop Using It Wrong: the Definitive Breakdown of How to Use a Colon
Q1: Can a colon ever appear after the words "for example" or "such as"?
A1: No. Words like "such as," "including," and "for example" introduce illustrations within the flow of a sentence. Placing a colon directly after them produces an ungrammatical pause. Write "Bring emergency gear, such as thermal blankets and flashlights," not "Bring emergency gear, such as: thermal blankets and flashlights."
Q2: Is it ever grammatically correct to use two colons in a single sentence?
A2: Avoid using two colons in the same sentence. While not strictly illegal in specialized bibliographic citations or timestamp formatting, multiple colons in narrative text disorient readers because they establish competing syntactic hierarches. Break the thought into two distinct sentences instead.
Q3: How much space belongs after a colon in professional writing?
A3: Modern digital and print standards mandate a single space after a colon. The convention of typing two spaces stems from typewriter monospaced fonts and has been obsolete across all major style manuals, including APA, CMOS, and MLA, for decades.