In the present era, new technologies emerge; enabling the transition from printed books to the electronic ones. In this context, changes in publishing stages are inevitable and very fast (i.e. printing, transportation and disposal stages are skipped). Among others the present diploma thesis aims to investigate, for the first time, the Greek publishing activity in relation to electronic publishing and electronic books. Furthermore, the world trends on the subject, in developed and developing countries compared with Greece will be presented. The findings of this study arise mainly from the results from a questionnaire answered by a large part of the Greek publishing world.