介绍笔者所在的南京邮电大学图书馆对本科学生进行旧书回购和捐赠,以补充馆藏、捐助贫困学生和其他图书馆,使文献再利用的方式,从中总结利弊,得出利用效用价值来分析所收集的文献,并通过一定的方式和途径再利用起来,对节约资源是十分有益的结论。 Describes the author’s Nanjing University of Posts and Telecommunications Library of undergraduate students to repurchase and donate old books, to supplement the collection, donate to poor students and other libraries, the way the literature is reused, summarizes the advantages and disadvantages, draw the use of utility value to analyze Collected documents, and through some means and ways to re-use, on the conservation of resources is very useful conclusions.