J. C. Chatteji's Kashmir Saivaism is an important and unique treatise on Saiva Philosophy that prevailed in Kashmir and still practised in different parts of India. The beginnings of 'Kashmir Saivaism' could be traced from Siva Sutras and its commentary by Ksemaraja. Its teachings and practices are given, in the literature of the system, the distinctive name of Trika-sasana, Trika-Sastra or simply Trika; and are often referred to as the Rahasya-Sampradaya, while Saivaism in general is spoken of as Siva-Sasana or Sivagama. The peculiarity of the Trika consists in the fact that, as a system of philosophy, it is a type of idealistic monism (advaita), and as such differs in of Saiva Philosophy, for instance, from what is described under the name of the Saiva Darsana in the Sarva-Darsana-Sangraha of Madhavacarya.This book provides an insight of the form of Saivaism developed in Kashmir starting from its History. The entire book in divided into two parts-1) Kashmir Saivaism's History and Literature, 2) The Main Doctrines of the System. The book also works as a basis for comparative study of various forms of Saivaism.