Addressing the challenges associated with data movement within the memory hierarchy, this chapter explores solutions from both hardware and systems software perspectives. It places special emphasis on buffer management techniques aimed at optimizing data movement and reducing access latency. The chapter also delves into the significance of nonvolatile memory (NVM), particularly flash memory devices, and their role in mitigating access latency within the memory hierarchy. Readers gain insights into strategies employed to minimize data movement, enhancing overall memory performance, a critical aspect of efficient data management.