This article explains and evaluates Atkinson and Shiffrin’s multi-store model of memory. The model proposes three stores: sensory register, short-term memory, and long-term memory. It examines how information flows between these stores and the processes involved. The article also discusses the limitations of short-term memory and the encoding of memories in long-term memory. Atkinson and Shiffrin’s model has been influential in the study of memory and has inspired further research.