On 18 June the 4th “ Philosophical Book Day ” exhibition was held in the RAS Institute of Philosophy with the participation of the Ibn Sina Foundation and the Sadra publishing house. During the event some new editions were presented, such as “Music in the context of Islam: Iranian traditions” (collection of articles, edited by T.M. Jani-Zade), “The unity of beauty” (collection of articles, edited by M.J. Nazarli) and “Typology of the Qur’anic parables (revealing realistic, symbolic and mythological aspects)” (edited by E.A. Rezvan). The event was attended by representatives of the Foundation and the publishing house, as well as research workers of the RAS Institute of Philosophy and other educational and research centres of Moscow.