THIRUVANANTHAPURAM: The 400-page article on Kerala in the Sarvavijnanakosham, Volume 8, is a prelude to the ‘Keralavijnanakosham,’ an exclusive, first-of-its-kind encyclopaedia on Kerala planned by the State Institute of Encyclopaedic publications. Work will begin soon on the special project, SIEP officials said. The ‘Keralavijnanakosham,’ will either be published as a single book or in multiple volumes.