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Sustainable Collection Services®

 

SCS Monographs Index

These numbers are based on 251 US academic libraries and over 113 million holdings. They include research libraries, state universities, 4-year colleges, and a handful of community colleges.

Collection measure - US Academic Libraries  Average value High value Low value
Monographs Count 436,571 3,297,093 417
Titles held by 100+ U.S. libraries—same edition 72% 94% 11%
Titles held by 5 or fewer U.S. libraries—any edition 2% 27% 0%
Held in Hathi Trust with In Copyright status 41% 56% 0%
Held in Hathi Trust with Public Domain status 6% 14% 0%
Titles with Zero Recorded Uses 43% 100% 9%
Titles with 1 to 3 Recorded Uses 32% 54% 0%
Titles with 4+ Recorded Uses 26% 65% 0%
Publication year more than 10 years old (at time of extract) 88% 100% 61%
Possible Duplicates 9% 43% 0%

 

The following numbers are based on 14 Canadian academic libraries and 14 million holdings.

Collection measure - Canadian Academic Libraries Average value High value Low value
Monographs Count 956,059 2,110,657 164,044
Titles held by 10+ Canadian libraries—same edition 55% 78% 9%
Titles held by 2 or fewer Canadian libraries—any edition 8% 20% 2%
Held in Hathi Trust with In Copyright status 35% 41% 18%
Held in Hathi Trust with Public Domain status 3% 6% 1%
Titles with Zero Recorded Uses 31% 45% 16%
Titles with 1 to 3 Recorded Uses 29% 48% 18%
Titles with 4+ Recorded Uses 40% 56% 23%
Publication year more than 10 years old (at time of extract) 87% 93% 83%
Possible Duplicates 15% 23% 6%

Updated: July 2018

Other resources

Sustainable Collection Services provides tools and services to help manage, share, archive or remove monographs to transform valuable library space. GreenGlass is a purpose-built, interactive application that allows you to explore your print collection.