The museum exhibits posters from the Maoist period of communist China, with a large focus on the Cultural Revolution. The museum's founder, Yang Pei Ming, started collecting the posters as a hobby and now shares his collection with others as he feels the posters "serve as a valuable historical document and provide an idealized account of a key period in global history". While not a huge museum, the museum is easily worth the small 20 rmb entrance fee.
The gift shop located inside is also full of gems. Featuring both original posters as well as reasonably priced prints, you can happily pick up your own piece of history. I was particularly drawn to the Shanghai Calendar Girl prints.
The museum is open daily from 10:00 am until 5:00 pm.
Basement, Bldg B
868 Huashan Lu, near Zhenning Lu