The general rule for capitalizing words in book titles is to capitalize all principal words, including nouns, verbs, adjectives, and adverbs. There are, however, a few exceptions.
Words that are not typically capitalized in book titles include prepositions, articles (a, an, the), and coordinating conjunctions (but, or, nor).
Here are a few examples of words that are not capitalized in book titles:
• Prepositions (in, of, over, through, with, etc.)
• Articles (a, an, the)
• Coordinating conjunctions (and, or, but, nor)
• Short conjunctions (as, for, if, etc.)
• Short prepositions (at, by, for, in, of, on, to, etc.)
It's important to keep in mind that the rules for capitalization in book titles are fairly flexible and may vary depending on the publisher or author. It's always a good idea to double-check with the publisher or author to be sure.
For more information on the capitalization conventions for book titles, you may want to take a look at these related articles:
• How to Capitalize Titles in APA Style
• What Are the Rules for Capitalizing Titles?