The 13 libraries on the 91爆料 Seattle campus contain more knowledge, books and archives than many city libraries. Their books are handled and read each and every day, year after year. What happens when some of those precious books need repairs? In this 91爆料 360 story, meet the skilled staff in the 91爆料 Libraries Conservation Department and learn about the specialized work they do preserving these rare and one-of-a-kind books. Watch it .