Acquisition work in libraries and information centers refers to the process of obtaining new documents and materials to build and maintain a collection. This crucial process ensures that the library has the resources needed to serve its users effectively. The comprehensive work of document acquisition involves several distinct and sequential steps.

Acquisition Work: Key Components

The core components that comprise the complete acquisition work cycle are as follows:

• Selection: This is the initial and foundational stage of the acquisition process. During selection, librarians and subject specialists identify and choose materials that are relevant to the library's collection development policy, align with user needs, and fit within the allocated budget. This involves reviewing new publications, evaluating existing collections, considering user requests, and consulting various bibliographic tools, reviews, and catalogs. The goal is to select high-quality, authoritative, and useful resources across various formats.
• Procurement: Once documents are selected, procurement is the stage where the library actively obtains these materials. This involves the practical steps of acquiring the chosen items. Procurement methods can vary significantly and include:
  • Purchase: Buying materials directly from publishers, booksellers, or vendors. This is a common method for acquiring new books, journals, and other commercial publications.
  • Gift: Receiving materials as donations from individuals, organizations, or other institutions. Gift processing involves evaluating the suitability of donated items for the collection.
  • Exchange: Swapping publications with other libraries or institutions, often for specialized or rare materials, or for publications from international organizations.
  • Subscription: For serials, periodicals, databases, and online resources, libraries typically establish recurring subscriptions.
  • Legal Deposit: In some countries, libraries are designated to receive copies of all publications produced within that country, often without cost.
  This stage also includes placing orders, tracking their progress, handling invoicing, and managing vendor relationships.
• Accessioning: This is the final administrative step in the acquisition process. Upon receiving the procured documents, they are formally recorded into the library's inventory. Accessioning involves:
  • Assigning a unique accession number to each physical item. This number serves as a permanent record of the item's entry into the collection.
  • Stamping or affixing the library's ownership mark on the document.
  • Recording essential bibliographic and acquisition details in an accession register, ledger, or an integrated library system (ILS) database. These details typically include the accession number, date of acquisition, source (vendor/donor), cost, and a brief description of the item.
  Accessioning is crucial for inventory control, collection management, and auditing purposes, providing a clear record of every item added to the library's holdings.

Understanding Other Library Operations

It's helpful to distinguish acquisition work from other vital library operations that occur before or after acquisition:

• Classification and Cataloguing: These are part of "technical processing" and happen after a document has been acquired and accessioned. Classification involves assigning a call number based on subject content (e.g., Dewey Decimal Classification, Library of Congress Classification), while cataloguing involves creating a detailed bibliographic record of the document (e.g., author, title, publisher, date, physical description) to make it discoverable through the library catalog.
• Reference Service: This is a "reader service" or "public service" function where librarians assist users in finding information, answering queries, and guiding them in using library resources. While a well-developed collection (resulting from effective acquisition) is essential for good reference service, reference service itself is not a part of the acquisition process.

Therefore, the complete and accurate representation of acquisition work is comprised of Selection, Procurement and Accessioning, covering the entire journey of a document from being identified as needed to being officially recorded as part of the library's collection.