A good and quality picture book is one of the important elements for the quality development of a child. Therefore, the purpose of this thesis is to explain in more detail the structure of picture books, as well as their method of creation. Creating this thesis is another way to emphasize the importance of illustrations and text, and their relationship. One of the criteria for writing this paper is to emphasize the importance of choosing quality picture books from seemingly high quality ones. Strive to teach all interested adults that picture books have five different functions that affect children. Also, picture books play a big role in speech development. Today, speech development is extremely important due to the excessive use of various technologies with smart screens that actually hinder the development of speech itself. Due to the accelerated pace, parents often resort to a simpler solution such as a smartphone or tablet instead of a personal engagement in encouraging speech. This slows down and complicates the natural process based on the conversation between the child and the parents. The work is written as a cross-section of the origin and influence of the picture book through history, from its origin in the seventeenth century to today's modern times, with reference to the most important people responsible for the emergence and development of picture books. In certain chapters, the way of creating and parts of picture books, and how they can help children, is elaborated and studied in more detail. Also mentioned are tactile picture books used in working with visually impaired or blind people. Nowadays, there are also different approaches to making illustrations. Examples of picture books suitable for a certain age of children, from the youngest nursery school to preschool children, are also given.