Memory is a multidimensional construct that is evident from very early in life yet undergoes a protracted course of development. The chapter features elaboration of the construct of memory with emphasis on distinctions between short- and long-term memory and between conscious and unconscious forms of memory. It also features discussion of data on developmental changes in different types of memory, including priming, short-term and working memory, deliberate and strategic memory, and episodic and autobiographical memory. Emphasis is placed on mechanisms of age-related change, including development of the neural structures and networks subserving memory; changes in the basic mnemonic processes of encoding, consolidation and storage, and retrieval; and conceptual development and knowledge change; as well as on social influences on remembering.