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WorldCat Discovery Services

Connect your users to the information they need.
Connect your library to the world.


Search WorldCat, the world’s most comprehensive library database

Identify resources at your library and in the collections of the world’s libraries. Library users and staff use WorldCat Discovery to search the WorldCat database of electronic, digital and physical resources; to identify materials they need and to find out where they are available.

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Expand your collection

You can discover more than 1.5 billion electronic, digital and physical resources with access to WorldCat and a central index of more than 2,000 e-content collections from providers such as Gale, ProQuest, Elsevier, Springer and others.

See everything that's included in the central index »
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Simplify your search

A new, mobile-ready discovery interface provides consolidated access to your electronic, physical and digital collections through a single search. Staff-specific features, such as MARC views, support streamlined reference workflows.

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Borrow, buy or connect to full text

Staff and users can choose from integrated delivery options: link directly to full text, link to your OPAC, borrow from another library or buy items directly from content sellers. Users connect to full text through built-in link resolution and an A to Z list when you have holdings in the WorldCat knowledge base. Interlibrary loan staff can use the full-featured searching and integrated ILL request button in WorldCat Discovery.

Learn more about resource sharing »

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Be visible where users start their search

WorldCat Discovery connects users back to your library from WorldCat.org™ and more than 50 popular consumer websites, such as Google, Goodreads and Wikipedia, when your library uses an OCLC Cataloging Subscription to represent its collections in WorldCat.

Learn more about partnerships »

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Customize your discovery experience

Options like item location and real-time availability status, group views, remote database search, course reserves and more let you add functionality based on what's best for your library and its users.

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You choose your implementation

WorldCat Discovery is available to all current OCLC FirstSearch subscribers as part of existing subscriptions. You choose how you implement WorldCat Discovery:

  • Access to WorldCat
  • As your primary discovery service
  • As a secondary discovery service

Start planning your migration

What's new for OCLC FirstSearch® users

See what's new and next for FirstSearch users, and get a preview of WorldCat Discovery in this 3-minute video.

Member Stories

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Exceed your users' search expectations

Discover how Dakota State University made their library's collections easier for students, faculty and staff to search.


"OCLC is letting its mission drive its actions. OCLC is reinforcing its public purpose by providing more access to more information for more people. Making library collections more accessible can only help us fulfill our mission as libraries."

Angi Faiks 
Associate Director of Access, Instruction and Research Services, Macalester College


"I use WorldCat 10 - 15 times a day at least, sometimes more. I couldn't do my job without WorldCat. The breadth of collections is unparalleled."

Tommy Nixon
MLIS Subject Librarian for Classics, Dramatic Art, & English/Comparative Literature, Davis Library, University of North Carolina at Chapel Hill

Upcoming events

07 October 2014

Putting the WorldCat in WorldCat Discovery

WorldCat Discovery Services enable people to discover more than 1.5 billion electronic, digital and physical resources in your library and libraries around the world through a single search.

19 November 2014

Putting the WorldCat in WorldCat Discovery

WorldCat Discovery Services enable people to discover more than 1.5 billion electronic, digital and physical resources in your library and libraries around the world through a single search.

See all WorldCat Discovery events »

Recent news


Need more information? Explore news, events, training and more for WorldCat Discovery.See resources