The handbook provides a comprehensive and in-depth overview of new concepts related to information literacy from the perspectives of library science, information science, educational science, higher education didactics, and science policy. It includes contributions on strategies and practical implementations for promoting information literacy in preschool, school, higher education, and scientific research. The learner-friendly and user-oriented design of these offerings through infrastructures, consulting and service options, as well as through didactically tailored planning, is of particular importance. Developments in information literacy in Germany, the United Kingdom, Austria, and Switzerland are presented with specific contributions for each country.