‘Collaboration: How leaders avoid the traps, build common ground, and reap big results’ by Morten Hansen, published by Harvard Business School Press

Read: Chapter one ‘Getting collaboration wrong…or getting it right’ Chapter two ‘Know when to collaborate and when not to’ Chapter three ‘Spot the four barriers to collaboration’ Chapter seven ‘Grow to be a collaborative leader’
You do not need to buy this book, you should be able to find it at your local library service.