Houghton has the most extensive collection of Keats materials in the world, thanks in large part to Arthur Houghton and Amy Lowell, both of whom donated their impressive collections. There is a room dedicated to Keats at Houghton that can be visited as part of the public tour on Fridays at 2:00 pm or at other times by appointment.
Keats’ manuscripts are restricted because of their extreme fragility. Digital copies of poems and letters are available to anyone through the finding aid, and the publication John Keats: Poetry Manuscripts at Harvard, A Facsimile Edition, ed. Jack Stillinger (Harvard University Press, 1990) reproduces most of the poetry manuscripts.
You can search for Keats manuscripts in HOLLIS for Archival Discovery by changing "keyword" to "creator" and searching for "Keats"
In HOLLIS, you can browse through the volumes held in the Keats room, which include Keats’ personal books, presentation volumes, and editions of his works, by choosing Starts With/Browse and selecting Browse by Other Call Number. Enter Keats in the search box. Permission of the Curator is also required to view Keats’s personal books and presentation copies.