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Build a better casebook.

H2O helps law faculty create high quality, open-licensed digital textbooks for free.

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Simple to use

Collect materials, hide and annotate text, and distribute casebooks to your students quickly and reliably. H2O is easy to add to your class.


Students spend thousands of dollars on textbooks during law school. Free casebooks make education more accessible and equitable.

Open Access

All materials in H2O are Creative Commons licensed for sharing and re-use, making it easy for professors to build off of each others’ work.


H2O is made by the Harvard Law School Library and designed carefully to serve faculty and student needs while supporting access for all.

a screenshot of an example case

Featured Faculty Authors

Headshot of Jonathan Zittrain
Professor Jonathan Zittrain
Harvard Law School
Headshot of Jeannie Suk Gersen
Professor Jeannie Suk Gersen
Harvard Law School
Headshot of Brian Quinn
Professor Brian Quinn
Boston College Law School
Headshot of Charles Fried
Professor Charles Fried
Harvard Law School
Headshot of Glenn Cohen
Professor I. Glenn Cohen
Harvard Law School
Headshot of Naz Modirzadeh
Professor Naz Modirzadeh
Harvard Law School
H2O's open source platform has transformed the way I teach corporate law.
Professor Brian Quinn, Boston College Law School

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