* Modern Style Guides: The most common style guides, like MLA, APA, and Chicago, recommend italicizing titles of books, journals, and other long works (including encyclopedias).
* Clarity and Consistency: Underlining can be confusing, as it's often used for emphasis in other contexts. Italicizing clearly distinguishes encyclopedia titles from surrounding text.
Example:
Instead of: "The article on the French Revolution in _Encyclopedia Britannica_ was insightful."
You would write: "The article on the French Revolution in *Encyclopedia Britannica* was insightful."
Exceptions:
* Specific Instructions: If your professor or instructor has specific formatting guidelines, follow those.
* Rare Cases: Some very old style guides might recommend underlining, but it's extremely uncommon today.
Important Note: Remember to be consistent in your formatting throughout your paper. If you choose to italicize, do so for all encyclopedia titles.