A picture book is certainly the first book a child encounters. Interest in this book among the young ones is encouraged by its attractive appearance and design. By encouraging play, learning is also developed, due to the unpreserved content in the history of the picture book. It is not possible to determine with certainty the first Croatian picture book, but everything is based on assumptions. The problem in the review of relevant literature is highlighted by the lack of writting that deals with picture books. Thus, for illustration which has a rich tradition and there are no historical reviews at all. The contemporary picture book also lacks relevant literature. But what can be said with certainty is that it's up to date with real and everyday situations, that problematic picture book deals with. New knowledge in child's development has changed the way and pushed the boundaries in the interpretation of text for children of early and pre-school age. By reading, the child becomes familiar with words and pronunciation, and the rich vocabulary in picture books enriches the vocabulary even more. Thus, the goal of this final paper, was to linguistically analyze the selected picture books of one of the most famous writers of modern times, Sanja Pilic. The resulting analysis concludes that the selected picture books and presumably the others are rich in lexicon.