Portal:Library and information science
The Library and Information Science Portal Library science and information science are two closely related and often intersecting disciplines that deal primarily with the organization and retrieval of information. Library science is an interdisciplinary social science incorporating the humanities, law and applied science and studying topics related to libraries; the collection, organization and dissemination of information resources; and the political economy of information. Library science has also historically included archival science, although a conceptual distinction between libraries and archives has evolved over time. Amongst the varied topics of study that fall within library science: how information resources are organized to serve the needs of select user groups; how people interact with classification systems and technology; how information is acquired, evaluated and applied by people in and outside of libraries as well as cross-culturally; how people are trained and educated for careers in libraries; the ethics that guide library service and organization; the legal status of libraries and information resources, and the applied science of information technology used in documentation and records management. Library science is constantly evolving, incorporating new topics like database management, information architecture and knowledge management.  Information science (also referred to as information studies) is an interdisciplinary science primarily concerned with the collection, classification, manipulation, storage, retrieval and dissemination of information. Information science studies the application and usage of knowledge in organizations, and the interaction between people, organizations and information systems. It is often, though not exclusively, studied as a branch of computer science or informatics and is closely related to the cognitive and social sciences.
 Basic collecting is quite easy; there are billions of books in the world, and thousands of bookstores, both physical and virtual. There is an active market in all types of works, going all the way back to illuminated manuscripts. While manuscript books are all expensive, even incunabula (books printed in the 15th century) can be found for several hundred US dollars, and century-old books often cost under ten dollars. Advanced collectors may pursue the great rarities; the Gutenberg Bible and Shakespeare's First Folio are famous, and expensive. Unusual items include the "book" of squares of native textiles brought back from the South Seas by Captain Cook. More practical for the collector of average means is to collect all the first editions of a favorite modern author.
Nancy Pearl (born January 12, 1945) is a librarian, best-selling author, book reviewer and was, until August 2004, the Executive Director of the Washington Center for the Book at Seattle Public Library. Her prolific reading and her knowledge of books and literature first made her locally famous in Seattle, Washington, where she regularly appears on public radio recommending books. Pearl achieved broader fame with Book Lust: Recommended Reading for Every Mood, Moment and Reason, (2003) her guide to good reading, and the sequel More Book Lust (summer 2005) with the same subtitle, which received much acclaim ("a sprightly follow-up"), and was chosen by the Today Show as one of their book-club selections. As of 2006[update], she is working on a book of recommendations for children and teens to be called Book Crush. Pearl's approach to enjoying reading is the Rule of 50 which states "If you still don't like a book after slogging through the first 50 pages, set it aside. If you're more than 50 years old, subtract your age from 100 and only grant it that many pages." 
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