Let our own editor, Roger Siebert, guide you on whether you need commas around a book title! If you find yourself wondering whether you should put commas around a word or phrase that restates another noun, such as the book title in the sentence “The novel Carrie was published in 1974,” ask yourself if the word or phrase answers the question “Which _____?” So in this case, does “Carrie” answer the question “Which novel?” Yes, it does. Countless novels exist, and “Carrie” specifies which one we’re referring to. So the book title is necessary information and should not be set off with commas.
