The fourth edition of the essential introduction to digital art, one of contemporary art's most exciting and dynamic forms of practice. Digital art, along with the technological developments of its medium, has rapidly evolved from the 'digital revolution' into the social media era and to the postdigital and post-Internet landscape. This new, expanded edition of this invaluable overview of the medium traces the emergence of artificial intelligence, augmented and mixed realities, and Non-Fungible Tokens (NFTs), and surveys themes explored by digital artworks in the areas of activism, networks and telepresence, and ecological art and the Anthropocene. Christiane Paul considers all forms of digital art, focusing on the basic characteristics of their aesthetic language and their technological and art-historical evolution. By looking at the ways in which internet art, digital installation, software art, AR and VR have emerged as recognized artistic practices, Digital Art is an essential critical guide.