David Coghlan and Teresa Brannick "Embracing complexity in design" by Katerina Alexiou, Jeffrey Johnson, Theodore Zamenopoulos "Living with complexity" by Donald A. Norman "Over-complicated? Over-simplified? The UX Efficient Frontier" by Morgane Peng "Participatory methods toolkit" by the Institute of Development Studies "The relationship of action research to human-computer interaction" by Gillian Hayes "The value and challenges of participatory research" by Cargo Margaret, and Shawna Mercer Illustrations by Ashley Doucette - www.doucette.studio