B
Evidence Grade B
Graded
under review
Safe to Cite
Current
40%
40% -- full text usage share from library databases for publisher sites (2026)
Attribution:
View source
Lighthouse Research Team
Last verified:
·
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Source verified
Evidence graded
Value
40%
Unit
Percentage
Data Vintage
2026
Entity
Geography
UK
Evidence Quality
B
Strong, reliable evidence
Sourced from a well-regarded research firm or industry leader with transparent methodology and a reasonably large sample.
Single source - not yet corroborated
Score breakdown
Extraction
75
Source Trust
60
Citation Chain
20
Independence
30
Methodology
50
Freshness
95
Source
NISO/UKSG KBART working group
Primary
Tier B
http://www.uksg.org/kbart/endorsement ↗
Source Article
KBART: endorsement
Original Research
NISO/UKSG KBART working group
· Original study ↗
Methodology
Estimate published by the NISO/UKSG KBART working group; methodology not stated
Methodology documented
Segmentation
IndustryEducation
RegionUK
RoleAll marketers
Cite this stat
Plain Text
publisher sites: 40% full text usage share from library databases. Source: NISO/UKSG KBART working group (2026). Via Lighthouse Intelligence -- https://lighthousedata.io/data/library-database-fulltext-usage-share
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<blockquote cite="https://lighthousedata.io/data/library-database-fulltext-usage-share" style="border-left:3px solid #2563eb;padding:12px 16px;margin:16px 0;font-family:system-ui,sans-serif;background:#f0f4ff;"><strong>40%</strong> -- full text usage share from library databases for publisher sites<br><small>Source: NISO/UKSG KBART working group (2026) · <a href="https://lighthousedata.io/data/library-database-fulltext-usage-share" target="_blank" rel="noopener">Lighthouse Intelligence</a></small></blockquote>
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