CamelCase is a writing style where words are combined without spaces, and each word starts with a capital letter. This format makes it easier to read long phrases at a glance. For example, the phrase "my favorite book" would be written as MyFavoriteBook. CamelCase is commonly used in programming and web development to name variables and functions clearly. This style is particularly useful in coding languages like Java and Python, where spaces are not allowed in identifiers. By using CamelCase, developers can create more readable and organized code, making it easier for others to understand their work.