The monograph is devoted to the problem of the emotional well-being of preschool children. The theoretical aspects of studying the fears of preschool children with normal development and speech dysontogenesis are considered. Scientifically based research data are presented on the specifics of the manifestation of fears in preschoolers with general speech underdevelopment, stuttering, in comparison with normally developing peers. The book is addressed to psychologists, speech pathologists, speech therapists, teachers of preschool educational organizations, as well as students of psychological and pedagogical universities.