The book’s chapters cover most of the topics that the Hellenic OCR Team has dealt with during its first five years of operation. This editorial presents the motivation for this publication and provides a general overview of the book’s content while sum- marising the most significant research and policy outcomes. The rest of the book consists of three thematic parts, each focusing on specific state-of- the-art data-driven approaches to parliamentary issues, as follows:

Part 1 Text-Mining Approaches to Parliamentary Discourse

Part 2 Advanced Tools and Methods for the Digital Transformation of Parliaments

Part 3 Parliaments’ Digital Transformation and Policy