This book constitutes the refereed proceedings of the 13th IFIP TC 9 International Conference on Human Choice and Computers, HCC13 2018, held at the 24th IFIP World Computer Congress, WCC 2018, in Poznan, Poland, in September 2018.The 29 revised full papers presented were carefully reviewed and selected from 48 submissions.

This Changes Everything.- The Basic Dream of the PC, or “Did you ever play tic-tac-toe”?.- Software Engineering in a British defence project in 1970.- History of Early Australian Designed Computers.- Assessing ICT access disparities between the institutional and home front using Activity Theory: A case of university students in South Africa’s Eastern Cape.- Creating an ICT skills enhancement environment for entrepreneurs.- Collaboration towards a more inclusive society: the case of South African ICT4D researchers.- iPay.lk – A Digital Merchant Platform from Sri Lanka.- Do we have what is needed to change everything? A survey of Finnish software businesses on labour shortage and its potential impacts.- Cybersecurity Capability and Capacity Building for South Africa.- Team Feedback Intervention and Team Learning in Virtual Teams: A Moderated Mediation Model of Team Cohesion and Personality.- Exploring Sustainable HCI Research Dimensions through the Inclusive Innovation Framework.- ICT and Sustainable Development: Looking beyond the Anthropocene.- On The Complex Relationships Between ICT Systems and the Planet.- Obsolescence in Information and Communication Technology: A Critical Discourse Analysis.- Aware but Not in Control: A Qualitative Value Analysis of the Effects of New Technologies.- Feminist Technoscience as a Resource for Working with Science Practices, a Critical Approach, and Gender Equality in Swedish Higher IT Educations.- Mind the Gap. Gender and Computer Science Conferences.- ICT changes everything! But who changes ICT?.- Becoming with in Participatory Design.- Three views to a school information system:  Wilma from a sociotechnical perspective.- Do Honest People Pull the Short Straw? The Paradox of Openness.- Philosophy as the road to good ICT.- Discussing Ethical Impacts in Research and Innovation: The Ethics Canvas.- The Ethics of Inherent Trust in Care Robots for the Elderly.- The legitimacy of cross-border searches through the Internet for criminal investigations.- Discussions on the Right to Data Portability from Legal Perspectives.- Artificial Intelligence does not Exist: Lessons from Shared Cognition and the Opposition to the Nature/Nurture Divide.- PHR, we've had a problem here.- An exploration of opportunities for a theory of information inadequacy.