It is not unproblematic to state the level and spread of reading ability in the past.However, as book and library historians, we must face this is as a necessary task.

• 陈述过去的阅读能力水平和范围并不是很容易的，但是对于书籍和图书馆历史学家来说，这是我们所面临的一项必要的任务。