6G-life: Unveiling the Future of Technological Sovereignty, Sustainability, and Trustworthiness takes the reader on a journey into the multifaceted landscape of 6G technologies. The book transcends the conventional boundaries of wireless communication as it dives into groundbreaking areas such as joint sensing and communication, terahertz frequencies, and optical links, while also delving into quantum communication and molecular communication, revealing the captivating potential of these emerging fields. The book's comprehensive approach ensures that readers are equipped to navigate the complexities of 6G not just theoretically, but with a clear roadmap for practical implementation. With insights drawn from the collaborative efforts of over 200 esteemed researchers in the groundbreaking 6G-life project, the book presents an unparalleled depth of knowledge, seamlessly bridging the gap between theoretical exploration and practical application, making it an indispensable resource for researchers, industry engineers, and students eager to explore the cutting-edge realm of 6G. Introduces novel information theoretical paradigms, including Post-Shannon theories, Identification Codes, and ingenious coding schemes Presents the applications of 6G in both human and machine interaction, shining a light on the convergence of reality and the metaverse Shows the symbiotic synergy between communication and computing, orchestrating the emergence of mobile edge clouds, artificial intelligence, and time-critical dependable systems such as Time-Sensitive Networking (TSN) Presents an architecture that combines cellular networks, wireless mesh networks, non-terrestrial networks, body-area networks into one holistic 6G architecture Discusses the role of AI in 6G Presents possible 6G use cases