Germanakos P. & Belk M. (2016). "Human-Centred Web Adaptation and Personalization - From Theory to Practice", Human-Computer Interaction Series, Springer, ISBN: 978-3-319-28048-6, release date: April 22, 2016. Please have a Free Preview

Germanakos P. (2008). "Web Personalization, Communication Environments: Incorporating Cognitive and Emotional Human Factors (Εξατομικευμένα Επικοινωνιακά Περιβάλλοντα στο Διαδίκτυο: Ο Ρόλος των Γνωστικών και Συναισθηματικών Διεργασιών στη Διάδραση με το Υπερμέσο)", Doctor of Philosophy Dissertation, Laboratory of New Technologies, Department of Communication and Media Studies, National & Kapodistrian University of Athens, 418 pages (or ext. version approx. 700 pages, both in greek - provided upon request). Please have a look at an Executive Summary of the thesis.