An information retrieval (IR) system is designed to analyse, process and store sources of information and retrieve those that match a particular user's requirements. A bewildering range of techniques is now available to the information professional attempting to successfully retrieve information. It is recognized that today's information professionals need to concentrate their efforts on learning the techniques of computerized IR. However, it is this book's contention that it also benefits them to learn the theory, techniques and tools that constitute the traditional approaches to the organization and processing of information. In fact much of this knowledge may still be applicable in the storage and retrieval of electronic information in digital library environments. The fully revised third edition of this highly regarded textbook has been thoroughly updated to incorporate major changes in this rapidly expanding field since the second edition in 2004, and a complete new chapter on citation indexing has been added. Unique in its scope, the book covers the whole spectrum of information storage and retrieval, including: users of IR and IR options; database technology; bibliographic formats; cataloguing and metadata; subject analysis and representation; automatic indexing and file organization; vocabulary control; abstracts and indexing; searching and retrieval; user-centred models of IR and user interfaces; evaluation of IR systems and evaluation experiments; online and CD-ROM IR; multimedia IR; hypertext and mark-up languages; web IR; intelligent IR; natural language processing and its applications in IR; citation analysis and IR; IR in digital libraries; and trends in IR research. Illustrated with many examples and comprehensively referenced for an international audience, this is an indispensable textbook for students of library and information studies. It is also an invaluable aid for information practitioners wishing to brush up on their skills and keep up to date with the latest techniques.

Every profession needs an introductory text to its core body of knowledge. This brand new, definitive text from renowned authors Gobinda Chowdhury, Paul F. Burton, David McMenemy and Alan Poulter provides an introduction to librarianship for students and new entrants to the profession. This handbook is the first to give a complete overview of all aspects of professional librarianship in the 21st century, and to offer an up-to-date, authoritative analysis of modern libraries and librarianship. The key areas covered are: libraries and information services: evolution or revolution; information resources and services; information organization and access; library and information users and society; library technologies; library and information management; and, LIS education and training. Each chapter in this user-friendly text features clear learning aims and objectives and a list of revision questions to test and consolidate knowledge and understanding. Mapping onto course content for library and information studies internationally, this handbook is a single source of introductory explanations of library and information concepts for the student. It is also the quintessential primer for new professionals.