Keats wrote not only superb poems but also wonderful, witty, revealing letters, out of which the poetry sometimes arises like a spontaneous growth. He considered and anatomised the nature of his art all through his brief career.
Keats's Afterlife, by Christopher Ricks, The New York Review of Books, June 11, 2009, review of Posthumous Keats: A Personal Biography, by Stanley Plumly
The Eve of St. Agnes—Green Bay, 2008: John Keats for Today’s Reader. Posted by Avery Cardinal Dulles on January 28, 2008, 2:22 PM, First Things