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((Short description|Process of accruing library materials))
((More citations needed|date=June 2021))
[[Library]] '''collection development''' is the process of systematically building the collection of a particular [[library]] to meet the information needs of the [[library]] users (a service population) in a timely and economical manner using [[Information Resources|information resources]] locally held as well as resources from other organizations.<ref>((cite book|last=Evans|first=G. Edward|title=Developing Library and Information Center Collections|url=https://archive.org/details/developinglibrar0000evan_t2k2|url-access=registration|year=2000|publisher=Libraries Unlimited|pages=[https://archive.org/details/developinglibrar0000evan_t2k2/page/15 15–16]))</ref><ref name="quest">((cite web |url=https://knowledgequest.aasl.org/why-do-you-need-a-collection-development-plan/ |title=Why Do You Need a Collection Development Plan? |last=Abercrombie |first=Sedley |date=May 30, 2018 |website=Knowledge Quest |access-date=December 26, 2022 |archive-url=https://web.archive.org/web/20220707113028/https://knowledgequest.aasl.org/why-do-you-need-a-collection-development-plan/ |archive-date=July 7, 2022))</ref><ref name="philosophy">((cite journal |url=https://digitalcommons.unl.edu/cgi/viewcontent.cgi?article=5653&context=libphilprac |title=Collections and Collection Development Exercise in Libraries: A Perspective in View |last1=Okolo |first1=Stanley Efe |last2=Eserada |first2=Rechael E |last3=Ugboh |first3=Peace N |last4=Ngbo |first4=Dorothy |journal=Library Philosophy and Practice |date=January 11, 2019 |access-date=December 30, 2022 |archive-url=https://web.archive.org/web/20220507183435/https://digitalcommons.unl.edu/cgi/viewcontent.cgi?article=5653&context=libphilprac |archive-date=May 7, 2022))</ref> "According to (Evans & zamosky )is a dynamic self [[Perpetration|perpetuation]] cycle or process and consists six definable stages namely,community analysis, [[selection policies,]] selection, [[Library acquisitions|acquisition]], weeding and [[evaluation]].

According to the [[International Federation of Library Associations and Institutions Paris Principles|International Federation of Library Associations and Institutions]] (IFLA), acquisition and collection development focuses on methodological and topical themes pertaining to acquisition of print and other analogue library materials (by purchase, exchange, gift, legal deposit), and the licensing and purchase of [[Electronic Information for Libraries|electronic information]] resources.<ref>((cite web |title=About the Acquisition and Collection Development Section |url=https://www.ifla.org/about-the-acquisition-collection-development-section |publisher=[[International Federation of Library Associations and Institutions]] |access-date=2021-06-20))</ref> Collection development involves activities that need a [[librarian]] or information professional who is specialized in improving the library's collection. The process includes the selection of [[information]] materials that respond to the users or patrons need as well as de-selection of unwanted information materials, called ((em|[[Weeding (library)|weeding]])).<ref name="philosophy" /><ref name="magazine">((cite web |url=https://americanlibrariesmagazine.org/2014/05/20/the-practical-librarians-guide-to-collection-development/ |title=The Practical Librarian's Guide to Collection Development |date=May 20, 2014 |website=American Libraries Magazine |access-date=December 26, 2022 |archive-url=https://web.archive.org/web/20221114205308/https://americanlibrariesmagazine.org/2014/05/20/the-practical-librarians-guide-to-collection-development/ |archive-date=November 14, 2022))</ref> It also involves the planning strategies for continuing acquisition, evaluation of new information materials and the existing collection in order to determine how well a particular library serves its users.<ref name="quest" /><ref name="slj">((cite web |url=https://www.slj.com/story/when-it-comes-to-weeding-books-librarians-are-attending-to-inclusion-and-diversity-slj-survey-shows |title=When Weeding Books, Librarians Are Attending to Inclusion and Diversity, SLJ Survey Shows |last=Kletter |first=Melanie |date=June 6, 2021 |website=School Library Journal |access-date=December 30, 2022 |archive-url=https://web.archive.org/web/20220816131644/https://www.slj.com/story/when-it-comes-to-weeding-books-librarians-are-attending-to-inclusion-and-diversity-slj-survey-shows |archive-date=August 16, 2022))</ref>

==Process==

Collection development is a continuous process comprising six elements or stages:<ref>((Cite journal |last1=Khan |first1=Ghalib |last2=Bhatti |first2=Rubina |date=2016-01-01 |title=An analysis of collection development in the university libraries of Pakistan |url=https://doi.org/10.1108/CB-07-2015-0012 |journal=Collection Building |volume=35 |issue=1 |pages=22–34 |doi=10.1108/CB-07-2015-0012 |issn=0160-4953))</ref>

# User needs analysis
# [[Policy|Policies]] development
# Selection
# Acquisition
# Weeding
# Evaluation

==User needs analysis==

User needs [[analysis]] is the process of learning more about a target population/ patrons with a view to identifying their information needs. Hence, this concept is also referred as to; [[Community]] analysis, user studies, information needs analysis, needs assessment and information audit. The following factors should be taken into consideration when doing the user analysis; available funds, number and qualifications of available staff, the depth and breadth of the study. However, there are options of choosing who can do the study; an [[institution]] can choose or hire people that can do the information needs analysis using qualified experienced consultant or constituting a committee comprising own members of staff and either the combination of the two mentioned.

Therefore, there are several advantages of [[Recruitment|hiring]] a qualified and experienced consultant for the following reasons;

The study will be done in a professional manner, the option will ensure completion of the study in good time, there will be no interruption of services as staff will be free to perform their normal duties.

==Policy==
The development and implementation of a collection development policy is a best practices for libraries and archives, and addresses issues such as:

*material selection and [[library acquisitions|acquisition]]
*replacement of worn or lost materials
*removal ([[Weeding (library)|weeding]]) of materials no longer needed in the collection
*planning for new collections or collection areas
*institutional mission
*cooperative decision-making with other libraries or within library [[consortium|consortia]]

According to the IFLA there are four primary reasons for a written collection development policy: selection, planning, public relations, and the wider context.  A written selection guidelines provide staff with the tools to access and evaluate potential additional collection materials as well as basis for denying the acceptance of materials.<ref name="riot">((cite web |url=https://bookriot.com/public-library-collection-development/ |title=Public Library Collection Development Secrets, Revealed |last=Gooding-Call |first=Anna |date=February 24, 2020 |website=Bookriot |access-date=December 30, 2022 |archive-url=https://web.archive.org/web/20220924141232/https://bookriot.com/public-library-collection-development/ |archive-date=September 24, 2022))</ref>  Beyond the addition of new materials this section can also define the [[parameters]] for weeding materials, storage standards, and [[Preservation (library and archive)|preservation]] of unstable collection objects.  Secondly, planning aids in making decisions for future improvement in library infrastructure and proper distribution of funds for the institution.<ref name="philosophy" /> Thirdly, in the current environment of limited funding and competition between departments and agencies, a written collection policy aids in the library's public relations.  This document can be a tool to help potential donors or funders assess the needs of the library, including assets and services.  Lastly, in terms of the wider context, the document can aid in collaboration with other institutions in an effort to [[Fulfillment (book)|fulfill]] the needs of their patrons and community.  Each institution will have a better understanding of the plans for each and how they can assist each other in achieving these goals.<ref>((cite web |url=https://www.ifla.org/files/assets/acquisition-collection-development/publications/gcdp-en.pdf |date=2001 |title=Guidelines for a Collection Development Policy Using the Conspectus Model |publisher=[[International Federation of Library Associations and Institutions]] |access-date=2021-06-20))</ref>

==Weeding==
((Main|Weeding (library)))

Weeding also known as de-selection of information materials is a ((em|planned)) and ((em|systematic)) practice of discarding or transferring to storage, excess copies and rarely-used books and materials.<ref name="slj" /><ref name="magazine" /> It also involve removal of library material from the collections based on some determined conditions.<ref name="maintenance" /><ref>((Cite web |last=NDSL |first=IT |title=LibGuides: Collection Development and Maintenance: Weeding |url=https://library-nd.libguides.com/cd/weeding |access-date=2022-05-25 |website=library-nd.libguides.com |language=en))</ref>

Historically, both [[Patronage|patrons]] and other librarians criticize weeding books. Some believe libraries should keep all materials in circulation no matter the condition or need for room in the facility for newer material.<ref>Johnson, P. (2013). Is Weeding an Unnatural Act? Technicalities, 33(5), 2-4.</ref> The controversial nature of collection weeding necessitates the educating of library staff. It provides them with "the tools they need to counter common perceptions or misperceptions regarding weeding", especially those encountered from faculty in an academic library.<ref>((Cite journal|last=Harveland|first=Jennifer|date=2017|title=Library inventory methods: Using flexibility and creativity to achieve a common goal within a federated library system.|journal=Collaborative Librarianship|volume=9|issue=3|pages=168–174))</ref> Educating the staff with [[Workshop on Information Technologies and Systems|workshops]] and presentations on collection quality, maintenance and the importance and positive benefits of weeding the collection are important components for a library to consider.

== Collection evaluation methods ==
Some library evaluation methods include the checklists method, circulation and [[interlibrary loan]] statistics, [[citation analysis]], network usage analysis, vendor-supplied statistics and faculty opinion. Therefore, without an ongoing weeding program, a collection can quickly age and become difficult to use.

However, in order to have a continuous weeding program, a method called continuous review, evaluation and weeding is used.<ref name="slj" /> This method makes it easier to routinely remove [[outdated]] and unused materials from the collection while also learning where the collection has gaps or it needs new items.<ref name="magazine" /><ref name="maintenance">((cite web |url=https://www.ala.org/tools/challengesupport/selectionpolicytoolkit/weeding |title=Collection Maintenance and Weeding |date=January 2018 |website=American Library Association |access-date=December 30, 2022 |archive-url=https://web.archive.org/web/20221212142046/https://www.ala.org/tools/challengesupport/selectionpolicytoolkit/weeding |archive-date=December 12, 2022))</ref>

===Selection vs. [[censorship]]===
((See also|Not Censorship, But Selection))
When acquiring new materials for a library's collection, it can be difficult to differentiate between selection and censorship.  [[American Library Association|The American Library Association]] speaks of collections development as selecting materials that are desired by the community as well as fulfilling other educational and recreational criteria.  The organization comments that a librarian should not purposely omit the purchase of books or other items due to them being controversial in nature, the author's religious or political views, or the librarian's personal beliefs.  From the ALA website, they continue the argument by stating that, "Libraries should provide materials and information presenting all points of view on current and historical issues. Materials should not be proscribed or removed because of partisan or doctrinal disapproval."<ref>((cite web |website=American Library Association |title=Diversity in Collection Development |url=http://www.ala.org/Template.cfm?Section=interpretations&Template=/ContentManagement/ContentDisplay.cfm&ContentID=8530 |access-date=December 30, 2022 |archive-url=https://web.archive.org/web/20140407140751/http://www.ala.org/Template.cfm?Section=interpretations&Template=/ContentManagement/ContentDisplay.cfm&ContentID=8530 |archive-date=April 7, 2014))</ref>

===Checklists method===
This method of collection evaluation is the practice of checking a library collection against a list of notable books or materials to see if the collection includes these titles.  This is the oldest method of collection evaluation, and its first recorded use occurs in 1849 by [[Charles Coffin Jewett]] at the [[Smithsonian Institution]].

===Citation analysis===
[[Citation analysis]] is the method most used on the college and university level.  This method looks at frequently used citations from bibliographies, [[Indene|indexes]], and references to see if the resources used are included in the learning institute's partner library.<ref>((Cite journal |url= http://www.istl.org/05-summer/refereed.html |title= Citation Analysis: A Method for Collection Development for a Rapidly Developing Field |last= LaBonte |first= Kristen |date= Summer 2005 |journal=Issues in Science and Technology Librarianship |issue= 43 |doi= 10.5062/F4TX3CB1 |accessdate= October 13, 2014))</ref>  The purpose is to see if the written work produced can be done using only the library located at the college or university.  Citation analysis is a good research method to use in academic libraries on the university and college level when performing a collections evaluation. This method is performed by studying bibliographies from many sources such as student papers, faculty research publications, along with theses and dissertations.  This information is then used to see what percentage of the items cited in the bibliographies have come from the academic library's collection.  Citation analysis is used to see if the work produced at the university or college has been written using sources mainly from the academic library at that learning institution.

===Collections grid===
The collections grid is a model to discuss items in a collection in terms of their uniqueness, and the amount of care or stewardship they attract.<ref name=collectionsgrid>((cite journal |last1=Dempsey |first1=Lorcan |author-link1=Lorcan Dempsey |last2=Malpas |first2=Constance |last3=Lavoie |first3=Brian F. |date=July 2014 |title=Collection directions: the evolution of library collections and collecting |journal=Portal: Libraries and the Academy |volume=14 |issue=3 |pages=393–423 |doi=10.1353/pla.2014.0013 |s2cid=62595774 |url=https://files.eric.ed.gov/fulltext/ED564803.pdf))</ref> For example, rare books and local history materials are held in few libraries and attract much care as the jewels of a collection, whereas books and DVDs are held in many libraries and do not attract as much care.

==Journals==
Academic journals about collection development include:
*''Against The Grain''
*''Collection Management''
*''Collection and Curation'' (formerly ''Collection Building'')
*''Journal of Electronic Resources Librarianship'' (formerly ''Acquisitions Librarian'')
*''Library Collections, Acquisitions & Technical Services'' (formerly ''Library Acquisitions: Practice and Theory'')
*''The Serials Librarian''

==See also==
*((slink|Electronic resource management|Data analysis))
*[[Library management]]
*[[Patron-driven acquisition]]

==References==
((Reflist))

==Further reading==
((refbegin))
*Asheim, Lester (1957). ''The Humanities in the Library: Problems in the Interpretation, Evaluation, and Use of Library Materials''. Chicago: American Library Association. 
*Albitz, Becky; Avery, Christine; Zabel, Diane (2014). ''Rethinking Collection Development and Management''. Libraries Unlimited.
*Association for Library Service to Children (ALSC) (2017). ''The Newbery and Caldecott Awards: A Guide to the Medal and Honor Books''. 2017 edition. Amer Library Assn Editions.
*Evans, G. Edward (1987). ''Developing Library and Information Center Collections''. Second ed. In "Library Science Text Series". Littleton, Colo.: Libraries Unlimited. ((ISBN|0-87287-546-6))
*''Faculty Participation in Collection Development''.  (February, 2013).  Laurence McKinley Gould Library.  Retrieved from http://apps.carleton.edu/campus/library/for_faculty/working/collection_development/
*Gregory, V. (2011).  ''Collection Development and Management for 21st Century Library Collections: An Introduction.'' New York: NY.  Neal Schuman Publishers, Inc.
*Hicks, Warren B. and Alma M. Tillin (1970). ''Developing Multi-Media Libraries''. New York: R.R. Bowker Co. SBN 8352-0265-8
*Disher, Wayne (2014). ''Crash Course in Collection Development''. 2nd edition. Libraries Unlimited.
*Mardis, Marcia (2016). ''The Collection Program in Schools: Concepts and Practices'' (Library and Information Science Text). 6th edition. Libraries Unlimited.
*Monson, Jane (2017). 'Getting Started with Digital Collections: Scaling to Fit Your Organization''. American Library Association.
*Hughes-Hassell, Sandra. (2005). ''Collection Management for Youth: Responding to the Needs of Learners''.  Amer Library Assn Editions. 
*Johnson, Peggy (2013). "'' Developing and Managing Electronic Collections: The Essentials''. Amer Library Assn Editions.
*Pattee, Amy (2013). ''Developing Library Collections for Today's Young Adults''. Scarecrow Press.
*Pawuk, Michael (2017). ''Graphic Novels: A Guide to Comic Books, Manga, and More''. 2nd edition. Libraries Unlimited.
*Ross, Sheri (2016). ''Guide to Electronic Resource Management''. Libraries Unlimited.
*Santamaria, Daniel (2014). ''Extensible Processing for Archives and Special Collections: Reducing Processing Backlogs''. ALA Neal-Schuman.
*Scull, Amanda (2017). ''Developing Dynamic Intersections between Collection Development and Information Literacy Instruction'' (Innovations in Information Literacy). Rowman & Littlefield Publishers.
*Stephens, Claire (2012). ''School Library Collection Development: Just the Basics: Just the Basics''.  Libraries Unlimited. 
*Trinkner, Charles L. (1963). ''Basic Books for Junior College Libraries: 20,000 Vital Titles''. Northport, Ala.: Colonial Press.
*Wulfekoetter, Gertrude (1961). ''Acquisitions Work: Processes Involved in Building Library Collections''. Seattle: University of Washington Press.
*Vnuk, Rebecca (2015). ''The Weeding Handbook: A Shelf-by-Shelf Guide''. Amer Library Assn Editions.
*Intner, S. (2016). "Forbidden Genres". ''Technicalities'', 36(1), 14-16.
*Mangrum, S., & Pozzebon, M. E. (2012). "Use of collection development policies in electronic resource management". ''Collection Building'', 31(3), 108-114.
*Hoffmann, F. W., & Wood, R. J. (2007). ''Library Collection Development Policies: School Libraries and Learning Resource Centers''. Lanham, Md.: Scarecrow Press, 2007.
*Chant, I. (2015). "The Art of Weeding". ''Library Journal'', 140(11), 34-37.
*Link, F. l., Tosaka, Y. t., & Weng, C. w. (2015). "Mining and Analyzing Circulation and ILL Data for Informed Collection Development". ''College & Research Libraries'', 76(6), 740-755.
*Westervelt, T. (2015). "Acquisition and Management of Digital Content at the Library of Congress". ''Serials Librarian'', 68(1-4), 269-273.
((refend))

==External links==
((Library resources box))
*[https://www.ala.org/tools/atoz/Collection%20Development/collectiondevelopment Collection Development – American Library Association]
*[http://www.ala.org/Template.cfm?Section=interpretations&Template=/ContentManagement/ContentDisplay.cfm&ContentID=8530: Diversity in Collection Development], [[American Library Association]]
*[http://www.ifla.org/files/assets/acquisition-collection-development/publications/gcdp-en.pdf IFLA Guidelines for a Collection Development Policy]
*[http://www.abc-clio.com/ODLIS/odlis_c.aspx#collecdevel Definition of Collection Development], ''Online Dictionary for Library and Information Science'' (ODLIS)

((Libraries and library science))
((Authority control))

[[Category:Library management]]

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