Land-based multi-unit service enterprises face significant economic disruption at the present time. A pivotal actor in these organisations is the Multi-Unit Leader (MUL) - otherwise known as District, Area or Regional Manager. Given inherent challenges and their complex positional space, how do effective MULs optimise performance? In his book, Effective Multi-Unit Leadership - full of up-to-date case studies - Chris Edger advances an Integrated Model of MUL that elucidates how key activities (sales-led service, systems and standards - 3Ss) are driven through behavioural practices (commitment, control and change - 3Cs) underpinned by MUL personal characteristics (expertise, emotional intelligence and energy - 3Es). Central to this model is the notion of ’portfolio optimisation through social exchange’ (POSE) where MULs apply ’local leadership’, leveraging their portfolios through the deft application of exchange-based currencies. As such, this book provides an essential guide to practitioners and academics on the art and science of Effective Multi-Unit Leadership.