Well, short story titles tend to be punchier. They need to draw you in quickly because you're about to read a shorter piece. A title like 'A Good Man Is Hard to Find' makes you curious right away. Novel titles can be a bit more elaborate. They sometimes have sub - titles or are part of a series title. For instance, 'The Lord of the Rings: The Fellowship of the Ring'. The short story title is like a quick snapshot, while the novel title can be more like a detailed portrait of what's to come in the book.
In general, no. Underlining short story titles is not a common practice. It's more typical to see them italicized or enclosed in quotation marks depending on the style guide being followed.
To make effective short story titles, look at the essence of the story. Is it a story about love lost? Then a title like 'Lost Love' might be appropriate. Make it short and to the point. For novels, it's important to think about the marketability as well. A title that stands out and is unique but still gives an idea about the story is ideal. For example, 'The Hunger Games' is both unique and gives an idea about the violent, competitive nature of the story world. You can also look at other successful titles in your genre for inspiration.
In most cases, short story titles are put in italics. This helps distinguish them from the main body of the text and gives them visual emphasis. However, some specific styles or publishers might have different guidelines.
Typically, short story titles are italicized. This is a common convention in writing to distinguish the title from the main text. Underlining is not the preferred style for short story titles.