The characteristics of early-age children, such as curiosity, creativity, and collaboration, align with the essential attributes of STEM education. Consequently, it is important to examine the perspectives of children's picture books regarding STEM professions (gender, field of study, inferred action, etc.). Children's picture books tailored for this purpose should be designed in a simple way in terms of form and content, written in an understandable language, and supported by visuals. In this way, opportunities will be provided for children to learn various concepts, events, and situations more easily through books. In this study, the representation of STEM professions in children's picture books during early childhood was examined. The study utilized document analysis, and the study group consisted of STEM-themed books available from publishing houses specializing in illustrated children's literature in Turkey. After forming the keywords and searching relevant publishing houses, ten books were included in the data analysis. The books were analyzed using the book review form developed by the researchers. The main findings of the study revealed that female characters were prominent in STEM professions in these books. Furthermore, the majority of the characters in STEM-themed picture books depicted engaging in product design and invention when examining the inferred actions. Additionally, objects such as writing tools, construction tools, and fictional machines were widely used by the characters in STEM-themed picture books. The representation of STEM professions in these picture books offers children inspiring role models, showcasing potential success and providing impactful narratives. Consequently, books emerge as effective tools in aiding children's understanding of specific concepts during their early years. [This paper was published in: "EJER Congress 2023 International Eurasian Educational Research Congress Conference Proceedings," Ani Publishing, 2023, pp. 163-178.]