The Silo Effect: The Peril of Expertise and the Promise of Breaking Down Barriers, Gillian Tett

I often find myself in a room, being briefed on a client problem (either directly or from an agency). 9 times out of 10 the answer, symptom and cause to the problem is silo-ed innovation. This book by Gillian Tett is wonderful articulation of that grade of problems, with plenty of examples.