‘Behavioural safety’ or behaviour-based safety (BBS) has been around as a concept for several decades and is commonly held to mean directly tackling the frontline behaviours that lead to incidents and injury. Unfortunately, virulent criticism of some approaches of BBS frequently generalises to all others, so that commentators don’t know if they are arguing or agreeing. This book aims to cut through the waffle to be the one-stop guide to all the core theories and principles that underpin behaviour-based safety. In this second edition, internationally acclaimed behavioural safety expert Tim Marsh leads the reader through the three main strands: The awareness approach, the ‘walk-and-talk’ approach, and the Six-Sigma safety or the Deming-inspired ‘full’ approach that covers the systemic approach to safety observation, measurement, intervention, and analysis, but also incorporates emotional intelligence training aimed at enhancing supervisor-worker trust and communication more generally.