Over the last 30 years, the pace of innovation has exploded while available resources have become increasingly scarce. Open Innovation is the solution, with client-supplier relationships being the main expedient. However, collaborating in innovation is full of obstacles, from uncertainties in innovation as a whole to difficulties with managing a business relationship. Co-innovation Dynamics, based on a deep-dive ethnographic inquiry enlightened by state-of-the-art management research, presents the daily life story of a collaborative innovation project. Also, based on two other qualitative and quantitative studies on co-innovation management, this book offers lessons and tips on how to manage the dynamics of collaborative innovation in the client-supplier relationship.