Innovations in Health Care is the fourth title in an ongoing series from the biennial conference Organizational Behaviour in Health Care. It compiles case examples of innovations within complex healthcare settings that are working, providing some credible and valuable examples of what can be and has been accomplished through organizational change. It also explores a range of cases where innovations were hindered or blocked from completing or sustaining across time, critically examining where current theories and practices are falling short and why there are problems that remain unsolved.