This Festschrift volume is published in honor of Professor Paul G. Spirakis on the occasion of
his 60th birthday. It celebrates his significant contributions to computer science as an
eminent talented and influential researcher and most visionary thought leader with a great
talent in inspiring and guiding young researchers. The book is a reflection of his main
research activities in the fields of algorithms probability networks and games and contains
a biographical sketch as well as essays and research contributions from close collaborators and
former PhD students.
