This thesis explores the possibilities of bibliotherapy in working with the younger school-age children. It is divided into two parts. The theoretical part of the bibliotherapy is shown in the first part. The second part is a practical part in which the research is shown that was conducted by surveying class teachers in 58 elementary schools in Osijek-Baranja County. The aim of the research is to find out whether the teachers are familiar with the term of bibliotherapy, whether they use bibliotherapy and for what purposes, whether they consider that bibliotherapy encourages students to read books, solve problems, accept diversities, adopt new values and attitudes, whether it improves the emotional, cognitive and social development of students and whether in such way, the students would show socially acceptable behaviour and whether they should implement bibliotherapy in their work. The research results have shown that the majority of teachers do not use bibliotherapy, but those that do, they consider that bibliotherapy encourages book reading and influences the students' capability of problem-solving, identifying socially acceptable behaviour, acceptance of diversities, acceptance of new values and attitudes and improvement of the emotional, social and cognitive development. The analysis brings to the conclusion that bibliotherapy should be used more, provide information to the students and insight into a special experience, encourage new values and attitudes, help students not to feel they are the only ones with problems and provide them with alternative solutions of the problem.