Typing by capitalizing the first letter of every word is a writing style known as "Title Case" or "Title-style capitalization." It is typically used for titles of books, articles, essays, headlines, and other forms of written content. People may use this style for several reasons:
Clarity: Capitalizing the first letter of each word can enhance readability and make the text easier to understand, especially in longer titles or headings.
Aesthetics: Some individuals may find Title Case visually appealing, as it gives a sense of formality and structure to the text.
Conformity to Style Guidelines: Many style guides, such as The Chicago Manual of Style and the Associated Press (AP) Stylebook, recommend or require the use of Title Case for titles.
Traditional Norms: In the past, Title Case was more commonly used for various types of writing, and some people may continue to adhere to these traditional norms.
Attention-Grabbing: Capitalizing the first letters of each word can help emphasize the title or heading, making it stand out more effectively.
However, it's important to note that using Title Case for regular sentences in casual communication, such as emails or social media posts, can be perceived as odd or even incorrect. In standard writing conventions, sentences should use sentence case, where only the first letter of the first word is capitalized, along with any proper nouns or the start of a sentence.
Ultimately, the choice of using Title Case or other capitalization styles depends on the context, writing guidelines, and personal preferences of the author.