The Seljuks in the fifth century AH, due to the extent to which they extend beyond the borders of present-day Iran, have linked Iranian history with neighboring territories, which makes it important to examine the history of this dynasty. In this regard, the work of "Seljuks from the Beginning to the End" by Abolghasem Forouzani in seventeen chapters is an attempt to examine all aspects of the Seljuk government. The question that arises is to what extent the author has been able to analyze and explain the various aspects of the Seljuk government based on the publication objectivesof this textbook. Therefore, in this article, the critical and analytical approaches and book validity are investigated. According to the conducted research, various relevant findings can be pointed out. Despite the variety of topics covered by this work on the Seljuk dynasty, it is a highly valid resource, especially in regard to the civilization and cultural aspect, which are considered among its most significant advantages. However, the application of the narration method in this work is majorly prevalent. Using as an academic textbook, it will therefore be difficult to make an analytical understanding of the Seljuk era.