Changing by numbers / Diane Ketley and Helen Bevan -- Improvement evaporation: why do successful changes decay? / David A. Buchanan and Louise Fitzgerald -- The best practices puzzle: why are new methods contained and not spread? / David A. Buchanan and Louise Fitzgerald -- View from the top: opening the box on spread and sustainability / Jane Louise Jones, Elaine Whitby and Rose Gollop -- Shades of resistance: understanding and addressing scepticism / Rose Gollop and Diane Ketley -- Tracking sustainability: lessons from the patient booking timeline / Annette Neath -- Spreading and sustaining change: the patient booking case experience / Jane Louise Jones -- Layers of leadership: hidden influencers of healthcare improvement / Annette Neath -- Spreading and sustaining change: the cancer collaborative case experience / Elaine Whitby and Rose Gollop -- High impact: key changes in cancer care / Rose Gollop and Sharon Saint Lamont -- Spreading can be easy: the "see and treat" experiment / Sharon Saint Lamont -- The sustainability and spread story: contributions to theory / Louise Fitzgerald and David A. Buchanan -- Sustaining change and avoiding containment: practice and policy / David A. Buchanan, Louise Fitzgerald and Diane Ketley -- Researching major change: issues and dilemmas / Elaine Whitby, Rose Gollop and David A. Buchanan.