The "De Administrando Imperio, " compiled by Constantine VII Porphyrogenitus in the tenth century, is one of the most important historical documents surviving from the middle Byzantine period, containing a wide variety of information on foreign relations and internal administration. The critical text of the "De Administrando Imperio, "edited by Gyula Moravcsik and translated by R. J. H. Jenkins (Dumbarton Oaks Texts), is now joined by the commentary, written in 1962 by a team of eminent scholars led by Jenkins. Long out of print, the Jenkins commentary remains the most thorough and authoritative study of this significant medieval text, and it is now republished as a companion volume to the critical text and translation. In addition to extensive commentary on the historical, geographical, and philological nuances of the Greek text, this volume contains a bibliography, map, indexes, and genealogical charts.

The Bogomils: A Study in Balkan Neo-Manichaeism traces the development of this little-understood heresy from its Middle Eastern roots. The Bogomils derived elements of their doctrine and practice from the Manichaeans and the Paulicians. By the reign of Alexius Comnenus, Bogomilism was rife within the Bulgarian and Byzantine empire and had taken hold even amongst influential families in Constantinople itself. Though they suffered persecution, decline and ultimate disappearance in their Balkan heartlands, the Bogomils were subsequently an influence upon more celebrated heresies in France and Italy. Dmitri Obolensky's magisterial study of Balkan dualism remains the definitive work on Bogomilism.

An introduction, complete in one volume, to the history of Russia from medieval times to the fall of Khrushchev and beyond. A study of the geographical setting in which the Russian state grew to its present super-power status is followed by five chapters which discuss the political, social, and economic history of the country, and four final chapters examine respectively the role of the Church, Soviet government and politics, the economy of the Soviet state, and the international relations of the USSR. Each chapter has been specially commissioned for this volume, and the writers are acknowledged experts in their fields. Every chapter is followed by a guide to further reading. This is perhaps the most comprehensive and authoritative collaborative history of Russia yet to appear. It will be read as a continuous account, and will also be consulted as a standard reference guide in libraries of universities, colleges, and schools wherever Russian and Soviet history, European history, and international relations are studied. It forms the first part of the three-volume Companion to Russian Studies, the two other parts of which deal with Russian language and literature, and Russian art and architecture respectively.

An introduction, complete in one volume, to the development of Russian literature from medieval times to the 1970s. Each chapter has been specially commissioned for this volume and the writers are noted scholars in their fields. The essays focus on the Russian language, the history of Russian writing and printing, and predominantly on the growth of a native Russian literature. This 1977 volume is unusual in combining a comprehensive study of Russian and Soviet literature with an introduction to the Russian language and an extensive treatment of Russian and Soviet drama. It is directed in part at the general reader and will also be consulted as a standard reference guide in libraries of universities, colleges, and schools wherever these subjects are read. It forms the second part of the three-volume Companion to Russian Studies, the first of which deals with Russian history, and the final part with Russian art and architecture.