Store
Everything Dr. Gwet has published, in one place — the inter-rater reliability handbooks alongside his other titles on Excel, R, SAS, and principal component analysis, plus AgreeStat360 licenses.
Books
Not every title here is about inter-rater reliability — Dr. Gwet has also written on principal component analysis and on using R and SAS for practicing analysts.
Software
One AgreeStat360 license key unlocks both the Excel/Windows and Cloud versions.
AgreeStat360 / Excel / Windows
Point-and-click reliability analysis inside a spreadsheet — see the Software page for the free standard version.
AgreeStat360 / Cloud-Based
The same analysis, no install required — run it from any browser.
AgreeTest / Cloud-Based
Test whether two agreement coefficients differ significantly — entirely free, in your browser.
Order a hard copy from Amazon
Physical editions of Dr. Gwet's books are available through his Amazon author page, across several regional storefronts.