Library 70% free of charge 5,161 beneficiaries 2,456 volumes donated 180 educational folders were delivered to schools 1,166 volumes (15 titles) as university textbooks 132 educational actions for minors 23 standard and 9 thematic educational programs 10 exhibitions 123 cultural actions 83 partnerships with other institutions 19 series of actions 12 “horizontal” actions at all the Museums of PIOP Network 5,000 beneficiaries 10,000 beneficiaries 140 Sustainable Development Report 2016 Actions PIOP upheld for yet another year, the high standards regarding its operation and services it provides to the Greek society, despite the objective	difficulties	of	the	current	economic	circumstances.