- Keats, John, ed. Robert Gittings, introduction by John Mee. Selected Letters. Oxford: Oxford World's Classics, 2002.
- Caitlin Kimball. "John Keats: To Autumn." Poetry Foundation. 4 October 2010. 5 July 2019. <https://www.poetryfoundation.org/articles/69595/john-keats-to-autumn>.
- "John Keats." Poetry Foundation . 5 July 2019. <https://www.poetryfoundation.org/poets/john-keats>.
- Stephen Hebron. "John Keats and 'negative capability'." British Library. 15 May 2014. 5 July 2019. <https://www.bl.uk/romantics-and-victorians/articles/john-keats-and-negative-capability>.
- "Manuscript of ‘To Autumn’ by John Keats." British Library. 5 July 2019. <https://www.bl.uk/collection-items/manuscript-of-to-autumn-by-john-keats>.