The purpose of this research is to analyze the content of Persian books in elementary school in terms of paying attention to the development of students' writing skills and comprehension in order to find out how much these two skills have been covered in Persian books. This research is based on the objective of the applied type and according to the nature of the measurement scale, it is of the nominal type. The current research is descriptive-analytical in terms of implementation. The statistical population of this research includes the Persian books of elementary school students (grades 1 to 6) in the academic year 2023-2024. The sample and statistical population are the same. The data measurement tool is the Nahilil content analysis checklist of primary school Persian books, created by a researcher based on the components of writing skills and comprehension. The components of writing skills include passive writing, semi-active writing and active writing. The component of comprehension is reading comprehension, which was analyzed based on a self-made checklist. The result obtained from this analysis can be said that, in general, from the total of available data, the most data is related to written books. The foundation of writing skills and comprehension begins in elementary school. In order to achieve the necessary literacy, In the understanding and understanding of books, reading is more important than understanding the content, and there is a significant difference between the different levels in the amount of written discussion content and comprehension.