BrowseAuthor ActivityDenis CristolDenis CristolDenis Cristol. PhD Research associate at the University of Paris Nanterre. Coach, author of 20 books on leadership, management and professional training. Specialist in informal learning issues and learning communities. Blogger. Chapters by Denis CristolLXD Webinar Series - Learner Experience Design in Professional EnvironmentsParticipatory Design and Co-Design—The Case of a MOOC on Public Innovation