This article is a preliminary report on the first (1998) season of the Kythera Survey, an intensive fiels survey concentrating on the central-eastern part of the island. This survey forms part of a wider projecr, whose aim is to explore the long-term insular dynamics of Kythera as a stepping stone, filter, and island with its own identy. Another central aim of this project, expanding on excavations at Kastri and the peak sancturary of Agios Georgios, is to shed new light on minoanisation as a spatial phenomenon in the island's landscape. In 1998 c. 13 sq. km were investigated, revealing 26 archaelogical sites. The peak periods of settlement in the surveyed area are the Early Bronze Age. Second Palace Period, Classical-Roman periods, and the last few centuries before the present. Poorly represented, or absent, are sites of later Neolithic, First Palace Period, Third Palace Period, Post-Palatial to Archaic, and Late Roman to Medieval date. Early Bronze Age sites are of Early Helladic character, whilst the Second Palace Period sites follow the minoanised culture of Kastri; together with a few finds of early minoanising material on Early Helladic sites, and the absence of evidence for the First Palace Period, these results provide new perspectives on the process of minoanisation on Kythera.