Definitions for "Special library"
a library sponsored by a private company, government agency, non-profit organization, or professional association designed to meet the special information needs of the sponsoring organization
State Library of Ohio, private corporations, law libraries, museum, historical societies, etc.
a library serving a special group, organization, or business having a collection with a special focus or centered around a particular topic, such as law. In general, not open to the public at all times. May be affiliated with a non-profit organization, a government agency, or a for-profit business.