Part 1, Introduction.- Chapter 1: Crossing boundaries: Quality in care transitions?; Karina Aase, Lene Schibevaag and Justin Waring.- Chapter 2: Studying complex care transitions from a qualitative perspective; Kristin A. Laugaland, Dagrunn N Dyrstad, Karina Aase.- Chapter 3: Studying complex care transitions from a quantitative perspective; Line Kildal Bragstad, Christina Foss.- Part 2, Patient perspective.- Chapter 4: Patient experiences of safety in care transitions; Jason Scott.- Chapter 5: The role of next-of-kin in care transitions; Dagrunn Nåden Dyrstad, Marianne Storm.- Chapter 6: Connecting with older people: multiple transitions in same place; Fiona Marshall.- Part 3, Contexts and characteristics.- Chapter 7: Pre-hospital transitions and emergency care; Jason Scott, Darren Flynn, Katharine Chan, Mark-Alexander Sujan.- Chapter 8: The role of professionals' competencies in care transitions; Marianne Storm.- Chapter 9: The knowledge brokering situations of care transitions; Simon Bishop, Justin Waring.- Chapter 10: Care Transitions in a federated landscape; Frances Rapport, Jeffrey Braithwaite, Rebecca Mitchell, Johanna Westbrook, Kate Churruca.- Part 4, Improving care transitions.- Chapter 11: In-hospital handovers: A context-specific design process; Doris stergaard, Marlene D Madsen, Lene F Petersen, Inger Margrethe Siemsen.- Chapter 12: Can an elephant crack a nut with a sledgehammer? How physicians cross boundaries; Antoinette de Bont, Dorien Zwart.- Chapter 13: The Meeting Point: Organizing for knowledge transfer; Randi Heskestad, Karina Aase.- Chapter 14: The role of integrated care and population health; Oliver Groene, Alexander Pimperl, Helmut Hildebrandt.- Part 5, Conclusions.- Chapter 15: Deconstructing quality in care transitions; Justin Waring, Karina Aase.