Narayana Guru edited by P K Balakrishnan, may be the best book ever written on this spiritual leader and social reformer. It is a collection of essays and memoirs by eminent people from various walks of life, including Mannath Padmanabhan, T K Madhavan, C Kesavan, Kumaranasan, Dr. Palpu, C V Kunjuraman, Sardar K M Panikkar, EMS, Mathai Manjooran, P Kesavadev, M C Joseph, M P Paul, and P K Balakrishnan, the editor himself. It also has some writings by Narayanaguru.