The Baltic Sea Region (BSR) has long been important in many aspects. The BSR is the first region in the world that has adopted common regional goals fos sutainable development. It is estimated that there will be a considerable increase in the number of regional geographic information strategies being implemented through the world in the next ten years. It will naturally raise interest in synthetic geographic information on the BSR, as on one of the most developed regions in the world. Atlas of the Baltic Sea Region (ABSR) has been planned as a complex and consistent cartographic edition with a purpose to represent the region as a whole in the best way possible. The goal of the paper is to introduce with a different user's groups and their specific needs. General difficulties and strengths (high level SWOT analysis) are described. The contents of the Atlas are designed as a modular structure that allows combining units of the Atlas in the most convenient way. It has been sought for most comprehensive territorial generalization of the accumulated scientific knowledge. The structure and particular maps are planned in a way to integrate natural and socio-cultural aspects as well as history and geography of the region, to demonstrate internal territorial links and provide a macro-regional context. Description of implementation focuses on the breakdown of project activities and tasks that illustrates the entire framework of ABSR including time schedule. Resources (hardware, software, information, knowledge) and responsibilities of team members are assigned to each task. Modern approach to design and management of the informational system for the Atlas and modern cartographic technologies were chosen to assure efficiency of works.