Abstract. EGP and ESP are two main subject areas for the university students who are going to have a B.A degree. The former is a general course and the latter a specific one as the names indicate. To the authors learning EGP as a general course for all B.A. students should pave the way to go through ESP course. It means having a general knowledge of language could be of great help in understanding language for specific purposes which is stuffed with specific vocabulary, etc. Text as a main factor in both courses generally and the relationship between the readability of them specifically has been investigated in the current study. To fulfill such a purpose, a piece of reading in GE book which is offered to all students who are going to have a B.A. degree was compared with readings extracted from 4 different ESP books in terms of readability. The results revealed that there is a meaningful relationship between the readability of EGP and ESP texts in Azad University of Arak.