“书籍是人类进步的阶梯。”它既记载人类的进步与文明，又促进人类的进步与文明。书籍的种类很多，从其思想性来看，可分为健康的书籍和不健康的书籍。健康的书籍，可以丰富人们的生活，陶冶人们的情操，启迪人们的思想，开拓人们的眼界，促进人类社会的进步与发展。从其社会 “The book is a ladder of human progress.” It records both human progress and civilization, and promotes human progress and civilization. There are many kinds of books. From their ideological point of view, they can be divided into healthy books and unhealthy books. Healthy books can enrich people’s lives, cultivate their sentiments, inspire people’s thoughts, open up people’s horizons, and promote the progress and development of human society. From its society