A psychological framework called "schemas theory," sometimes known as "schema theory" or "cognitive schema theory," describes how people organise and interpret information from their environment. Schemas are conceptual frameworks that represent information, assumptions, and expectations regarding certain ideas or circumstances. This summary gives a general review of the Schema Theory, its essential elements, and its effects on cognition and behaviour. It also investigates how schemas affect social cognition, memory, decision-making, perception, and memory. We may learn more about cognitive processes and the manner in which people process and react to stimuli by comprehending how schemas influence how we see the environment.