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ascertaining demandsince demand is a basic factor in selection you have to develop a system for ascertaining the demand- demand includes both
document selectionyou have seen that acquisition work includes three distinct phases of activities document selection is the first phase there are
acquisition departmentlibraries are organised into units departments sections based on the functions that they are expected to perform
a firm is intending to operate across a number of markets in the worldyou have been hired to help them in finding consistent methods to analyse their
computer-based materialscomputer-based materials are a recent development but have become very important to modern libraries of all types
audio-visual materialsaudio-visual materials no comprehensive bibliography exists at present for identifying and selecting useful audio-visual
microformsmicropublishing is retrospective being merely the reprinting of previously existing materials back files of newspapers periodicals
selection tools non-print materialsthe production and distribution of non-print materials is a recent development and therefore not as well
patents patents are an important source of information various primary and secondary journals publish information regarding current patents
government publicationsgovernment publications come from all branches divisions and levels of government they embrace the entire universe of
periodicals and serialsprimary periodicals constitute one of the most indispensable categories of publications in academic research
library journalpublishes quarterly lists of scientific technical and medical books announced for publication by publishers the third
subject bibliographiessubject bibliographies are useful selection tools for retrospective books if they are compiled by professionals with a
national bibliographiesranganathan defines the term national bibliography as a list of books periodicals and of their reprographs published in a
catalogues and bibliographiesthere are a number of commercial organisations like publishers booksellers distributors and printers whose
current listscurrent books - those that are published during the year - represent the majority of materials usually acquired by most libraries
selection toolsinformation resources development is an important activity of any library or information centre as it ensures efficient
non-print materialsnon-print materials entered the mainstream of collection development in libraries in the last two decades audio visual and
publishing agencies fall under three broad categoriesi trade publishing houses companies booksellers and others they publish books of all
print materialsthe author publisher and bookseller are all partners in turning ideas into a finished product these groups operate as a team
information materialslet us study in brief how information materials are produced the agencies that produce them and the information channels
selection tools and their importancein order to do this job well it is invaluable to have a good background knowledge of production agencies that
policies norms and standardsinformation source building an important function of the library should be based on sound policies and
ranganathans principlesperhaps it would be worthwhile to consider the five laws of library science of dr s r ranganathan as the basic guidelines
mccolvins principleslr mccolvin advanced his demand and supply theory of book selection in 1925 he states books in themselves are nothing they