最近，美国哈佛大学继一次购入爱如生中国近代报刊库要刊编第1、2、3辑和爱如生中国谱牒库二集后，又下单购入爱如生四库系列数据库的四库著录书、四库存目书、四库奏毁书、四库未收书共一库四集，从而使其拥有的爱如生数字产品多达15库23集，继续保持其全球领先的地位。

值得反复介绍的是，爱如生四库系列数据库是围绕清修四库这个中国文化史重要事件编辑制作的大型专题数据库，全库由四库著录书、四库存目书、四库奏毁书、四库未收书共四个既各自独立又互相联系的数据库组成，除四库著录书以前有过同类数据库出版外，其余三个数据库均是爱如生首创。四库著录书收录清修四库时修入四库全书之3,460种典籍，四库存目书收录清修四库时列为存目之4,752种典籍，四库奏毁书收录清修四库时军机处奏明毁弃之620种典籍，四库未收书收录清修四库时未见未收之168种典籍，全库总计收录历代典籍多达9000种，因此可以说，爱如生四库系列数据库不但是清修四库这一中国文化史重要事件的总结性数据库，也是截至清修四库时中国历代文献发展史的总结性数据库，其学术意义不待赘言。希望有更多的学术机构了解和利用四库系列数据库。

Good Year End- Harvard University Purchased Series Database of Sikuquanshu

Recently, Harvard University, after purchasing Erudition Database of Chinese Modern Periodicals ( important journals I, II, and III) and Database of Chinese Genealogy II, it ordered Series Database of Sikuquanshu (I, II, III and IV), so that it has as many as 15 databases and 23 collections of Erudition’s digital products, being the front-runner in the world.

It is worth reiterating that Erudition Series Database of Sikuquanshu is a large thematic database edited and produced according to Si Ku Quan Shu (Complete Library in Four Branches of Literature) revised in Qing Dynasty. The whole database consists of four independent and interrelated databases. In addition to Series Database of Sikuquanshu I （the books collected from the Si Ku Quan Shu, which has the similar databases published by other institutions before, the other three databases were initiated by Erudition. Series Database of Sikuquanshu I collected 3,460 kinds of ancient books; Series Database of Sikuquanshu II collected 4,752 kinds of ancient books which were listed as Cun Mu revised in Qing Dynasty; Series Database of Sikuquanshu III collected 620 kinds of books destroyed by the Grand Council in revising the Si Ku Quan Shu in Qing Dynasty; There are 168 books that were not collected in the revised Si Ku Quan Shu in Qing Dynasty. It totals 9000 kinds of ancient books recorded in this database. It can be said that Erudition Series Database of Sikuquanshu is not only a summary database of the important events in the history of Chinese culture, but also of the development history of Chinese literature in the past dynasties up to the time of the revision of Siku, which is of academic significance. It is hoped that more academic institutions will learn and make use of Series Database of Sikuquanshu.