Two. According to information from Sohu News, there are two book collectors in Heze, Zhang Chuandang and Fu Binggang. Zhang Chuandang has a collection of 20,000 books, built its own library and opened it free of charge for 48 years. Fu Binggang has a collection of 50,000 books and won the titles of "Top Ten Farmers' Book Collectors in Shandong Province" and "Top Ten Scholars in Shandong Province".