Here's why:
* Readability: All caps are difficult to read, especially for longer titles. They create a jarring visual effect and make it harder for the reader to process the information.
* Convention: In most writing styles, titles are written in sentence case, meaning only the first word and proper nouns are capitalized. This makes titles more visually appealing and easier to read.
* Emphasis: Boldfacing is used to emphasize certain words or phrases within a text. Using boldface for an entire title can make it seem overly assertive or distracting.
When to capitalize titles:
* Formal writing: In academic papers, formal reports, and some publications, titles are often written in title case, where all major words are capitalized.
* Specific style guides: Some style guides (like APA or Chicago) have specific rules for title capitalization. It's important to follow the guidelines of the style guide you're using.
When to boldface titles:
* Headings: Boldfacing is often used for headings and subheadings to help organize the text and make it easier to scan.
* Emphasis: You might choose to boldface a title to draw attention to it or emphasize its importance.
In general, it's best to use sentence case and avoid boldfacing for titles unless there's a specific reason or style guide requirement.