Wikipedia definition
1. Private libraryA private library is a library under the care of private ownership, as compared to that of a public institution, and is usually only established for the use of a small number of people, or even a single person. As with public libraries, some people use stamps, stickers, or embossing to show ownership of the items. Some people sell their private libraries to established institutions such as the Library of Congress, or, as is often the case, bequeath them thereto after death, through a will.
Read “Private library” on English Wikipedia
Read “私立図書館” on Japanese Wikipedia
Read “Private library” on DBpedia


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