The introductory part of the paper shows what a picture book is, why it belongs to children's literature, types of picture books and a brief history of picture books in the world and in Croatia. The functions of the picture book and the circumstances that influence the reading of picture books and the criteria for choosing a picture book are also stated. A picture book is a book that, in addition to speech and language development, provides the child with the opportunity to develop imagination, social skills and expand their knowledge. This is how problem-based picture books have been born nowadays, which are increasingly popular, and which provide an opportunity for adults to touch on some difficult topics through the story that they want to talk about with children and with the help of which they have the opportunity to work with children on the development of speech and language. Furthermore, in the central part of the paper, the child's speech and language development is described and how reading picture books affects that development, and Pino's picture books are shown and two from the series are analysed. A conversation with a teacher and a speech therapist shows how Pino picture books are used in everyday work with children and that they are of high quality and carefully designed and contain everything that a quality picture book must have.