This document provides an overview of knowledge management (KM) principles and practices. It discusses the history and evolution of KM, from early informal knowledge sharing between individuals to modern formalized approaches. Key aspects of KM covered include the distinction between explicit and tacit knowledge, protecting knowledge assets, dimensions of knowledge, and the KM cycle of vision, generation, acquisition, capture, transformation, transfer and application of knowledge. The goal of KM is to harness expertise and continuously develop individual and organizational learning to achieve business objectives.