Capitalization Rules–A Quick Guide | Grammarly
The capitalization rules for titles of books, movies, and other works vary a little between style guides. In general, you should capitalize the first word, all nouns, all verbs (even short ones, like is), all adjectives, and all proper nouns. That means you should lowercase articles, conjunctions, and prepositions—however, some style guides say to capitalize conjunctions and prepositions that are longer than five letters.
DA: 73 PA: 5 MOZ Rank: 9