APA Style is a set of guidelines for writing and formatting research papers, developed by the American Psychological Association. It is commonly used in the social sciences, such as psychology, sociology, and education, to ensure clarity and consistency in scholarly communication. The style includes specific rules for citing sources, structuring papers, and formatting references. Key elements include a title page, abstract, in-text citations, and a reference list. By following APA Style, writers can present their work in a professional manner, making it easier for readers to understand and locate the sources used in their research.