AI systems write, paint, compose music and so on. Does this mean that their novels, paintings and songs are (or should be) protected by copyright? If so, who would be the author and copyright holder? New AI tools as Chat GPT-4, Midjourney or DALL-E 2 challenge copyright regulations. This book provides 25 key factors for analyzing the copyright of artificial intelligence works, distinguishing between those works created autonomously by intelligent machines and those for which a relevant, verified human contribution has formed part of the creative process.