This is interesting:
In the United States, periods and commas go inside quotation marks regardless of logic. Click HERE for an explanation (sort of).
In the United Kingdom, Canada, and islands under the influence of British education, punctuation around quotation marks is more apt to follow logic. In American style, then, you would write: My favorite poem is Robert Frost's "Design." But in England you would write: My favorite poem is Robert Frost's "Design". The placement of marks other than periods and commas follows the logic that quotation marks should accompany (be right next to) the text being quoted or set apart as a title. Thus, you would write (on either side of the Atlantic):
- What do you think of Robert Frost's "Design"? and
- I love "Design"; however, my favorite poem was written by Emily Dickinson.