DHENKANAL: Two books - Jeevan Jignasya (Odia) and Philosophy, Society and Culture (English) - written by educationist Dhaneswar Sahoo were released during a function held at Town Hall here on Sunday. Retired principal Dr Bhawani Shankar Mishra, Joint Secretary and MDM State Nodal Officer Gangadhar Sahoo and Dr Kailash Das reviewed the books.