The metaverse, a hybrid society of the real and the virtual is attracting significant attention from academia to industry and is starting to change the world. Composed of ten chapters, this book introduces the metaverse from three aspects – concept, content and context. It starts with numerous concepts related to the metaverse, such as virtual reality, augmented reality, Web 3.0 and NFTs and describes the background, features, advantages and disadvantages. It then presents the content or key techniques around the metaverse, Artificial Intelligence, big data, edge computing, 3D modeling...