Have you ever wondered what the difference is between a MUD and an API? Don't know your OCR from your PPC? Not quite clear on crowd-sourcing and culture jamming? Then this book is for you. In a series of accessible and engagingly written essays, this book introduces and explains all the key aspects of the digital world and how it works. It is a book that will be welcomed by anyone who wants to understand one of the most powerful forces shaping our world.