This compact introduction addresses not only the classic foundational topics of educational psychology such as learning, thinking, motivation, education, and development across the lifespan but also significant current challenges. Issues such as migration, health, media, morality, compassion, and gender are discussed as both problems and opportunities for teaching and learning. Educational psychology is concerned with the task of describing, explaining, predicting, and changing educational and learning processes. It provides information about the conditions and possibilities of educational action and is thus an important reference discipline for school pedagogy, educational sciences, and social sciences.