It's free. The opening hours of Wu 'an Library are 8: 30- 18: 30 in summer and 8: 30- 18: 00 in winter. Among them, the electronic reading room is open from 8: 30- 18: 30 all year round, with internal study time on Friday morning and closed on Monday. Among them, the electronic reading room is open from 8:30- 18:30 all year round. Friday morning is the internal study time, and it is closed on Mondays. Wu 'an Library was established in 1956, with a collection of 334,000 books, including160,000 paper books and174,000 e-books. Wu 'an Library adheres to the service policy of "enthusiasm, enthusiasm and initiative", opens normally on holidays and weekends, and carries out various service modes such as delayed service, tracking service, information consultation, information retrieval, book borrowing and booking, etc. , and the implementation of zero threshold, full service, full wireless network coverage, to provide readers with convenient services such as book borrowing, audio-visual appreciation, famous lectures, online retrieval, reference and consultation. Automatic management of cataloging, circulation and bibliographic retrieval of library books; All services of the museum are open to readers free of charge.