Classifications are systems used to organize and categorize items, concepts, or organisms based on shared characteristics. This method helps simplify complex information, making it easier to understand and analyze. For example, in biology, living organisms are classified into groups such as kingdoms, phylum, and species based on their traits and evolutionary relationships. In everyday life, classifications can be seen in libraries, where books are organized by genres like fiction and non-fiction, or in grocery stores, where products are grouped into categories such as dairy, produce, and snacks. These systems facilitate efficient retrieval and management of information or items.