"Electronic descriptions and cataloguing of Slavic manuscripts and Early printed books in Swedish repositories" Antoaneta Granberg and Per Ambrosiani The paper presents the work in progress within the national infrastructural project “Digitalized Descriptions of Slavic Cyrillic Manuscripts and Early Printed Books at Swedish Libraries and Archives”, funded by Riksbankens Jubileumsfond, 2010-2012. Four specialists from four Swedish universities are involved in this project: Alexander Pereswetoff-Morath (Stockholm University), Antoaneta Granberg (Gothenburg University), Irina Lysén (Uppsala University) and Per Ambrosiani (Umeå University). The introductory presentation of the existing Slavic manuscripts and early printed books in Swedish repositories focuses both on different kinds of collections and on single findings. The discussion concentrates on the main principles of description used for Slavic manuscripts and early printed books, including the need for a standard for electronic description of early printed books. A particular problem is here the descriptive terminology, which sometimes is not sufficiently well established and also differs between schools and scholarly traditions (for example, the problem of uniform designations for less common types of manuscripts or books). The theoretical discussion will be illustrated with examples from some of the most interesting manuscripts and books in the Swedish repositories.