To study organizations means to study their memories. At different points in time, organizational memory has been considered in the literature as a time-capsule, a social system that attributes meaning, and a teleological aspect of a practice. Building on these theories this essay will attempt to present a holistic overview of the mnemonic phenomenon. A proposed distinction between short- and long-term manifestations of practice memory and the role of organizational memory in solidifying regimes of practices within an organization is discussed. Possible questions for further research are put forward.