The “International Handbook of Health Literacy: Research, Practice, and Policy across the Lifespan” was published in 2019 by Policy Press Bristol in the United Kingdom and is available as an open access book. The handbook aims to provide an overview of the multifaceted and multidimensional nature of health literacy by adopting a lifespan perspective, while addressing the areas of research, practice and policy. Comprised of 45 chapters by 104 authors from 21 different countries across the world, the book addresses different populations across the lifespan, such as children, adolescents, adults, and elderly, and thereby focuses on concepts, methodologies, programmes and interventions to improve health literacy, governmental and community policies as well as different settings. This is the first comprehensive book on health literacy that outlines recent developments and addresses pending questions and future prospects of cutting-edge research, policy and practice. The book shares research results, new approaches and theoretical considerations, and highlights links between health literacy and disciplines such as education, health promotion, sociology, social epidemiology, public health, healthcare, medicine, nursing, or pharmacy. By providing a wide range of major findings, and by outlining the current discourse in health literacy, the book introduces health literacy to new readers but also keeps any reader who is already familiar with the topic, updated about the latest developments in this field. The editors will present the book and also invite chapter authors to present their chapters.