Capitalization/ˌkæpɪtələˈzeɪʃn/ Definition 1 of 4Pro Tip 1/3First Letters Always use a capital letter for the first word in every sentence. Capitalization matters when writing in English. Pro Tip 2/3Names and Places Capitalize names of people, cities, countries, and landmarks. London is known for the Tower Bridge. Pro Tip 3/3Titles and Headings Use capitalization for titles of books, articles, and movies, usually major words. One of my favorites is 'To Kill a Mockingbird.'