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The Library Corporation

Welcome to ITSMARC by TLC, a leader in metadata since 1974


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What is ITSMARC?

ITSMARC is TLC's online copy cataloging resource providing access to 83 million records. It delivers two types of MARC records: bibliographic and authority. Most people think of ITSMARC as a source of bibliographic metadata but there are also LC, Sears and MeSH authority records available.


ITSMARC Databases

ITSMARC draws its MARC records from 23 separate databases. Click on the links to the left to get a brief description. Select Contents from the description display for more details.

Database Counts as of 1/22/2024
1,909,668

17,911,795

4,035,317

1,692,234

2,025,858

4,488,801

1,611,857

1,081,894

361,724

2,008,863

5,796,482

6,037,881

6,338,323

838,686

1,295,584

651,782

10,702,838

12,104,130

249,503

645,666

151,621

9089

1,178,692

Total:
83,128,288

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