In today's digital world, platforms are everywhere, shaping our social and cultural landscapes. This groundbreaking book shows how platforms are not just technical systems, but complex networks involving diverse people, practices and values. It explores a wide range of digital platforms, using insights from science and technology studies, anthropology, sociology and cultural theories to offer fresh perspectives on how platforms, media and devices function and evolve. Blending ethnographic work with technical analysis, this is essential reading for anyone wanting a deeper understanding of the digital age.