The focus of the presented dissertation by Ms. Rosken is the phenomenon of diversity and the question of what types of professional approaches educators develop in relation to this phenomenon. A corresponding study in the field of early childhood education has not been known until now, making Ms. Rosken's work a pioneering effort. Diversity is a term that has emerged in recent years as a descriptor for social variety, different backgrounds and ethnicities, as well as divergent interests and needs of individuals and groups. Too often, it gets caught up in well-meaning perspectives. What remains is a colorful variety and harmonious coexistence - at least as a normative construct. Against such forms of softening the phenomena of diversity, Anne Rosken sets a clear counterpoint with this work. Thus, she researches diversity.