1. Sir Isaiah Berlin Papers University of Oxford Bodleian Library.
2. Berlin Isaiah Against the Current ed. Henry Hardy (Princeton: Princeton University Press 2013).
3. Berlin Isaiah Building: Letters 1960- 1975 eds. Henry Hardy and Mark Pottle (London: Chatto & Windus) 2013.
4. Berlin Isaiah Concepts and Categories ed. Henry Hardy (Princeton: Princeton University Press 2013).
5. Berlin Isaiah Enlightening: Letters 1940- 1960 ed. Henry Hardy (London: Chatto &Windus 2009).