It's free. Official website of Changshu Library introduced that Changshu Library is a free public place, and visitors can enter the library to read and study for free. Changshu Library is located at the foot of Yushan Mountain, connected with Prince Zhaoming's Reading Desk, Youwen Academy, Wang Mai Pavilion and 19 15 old library. Perfect integration of traditional culture and modern culture. It is the first leisure library in China, and has won the first prize of WA China Architecture, the first prize of architectural design of the Ministry of Education, and the new landscape of ten cities in Changshu.