Six copies. Changshu Institute of Technology is a provincial full-time undergraduate college in Jiangsu Province, and it is the first batch of pilot colleges in the new round of undergraduate teaching qualification assessment organized by the Ministry of Education. According to the relevant regulations of the school library, it is known that the number of books borrowed by teachers and cadres is 20, the number of books borrowed by employees, retired employees, undergraduates and junior college students is 6, and the number of books borrowed by off-campus readers is 3. Therefore, students in this school can borrow up to six books.