This book provides an advanced and contemporary understanding about personality at work, with a particular focus on the change perspective of personality. Thus far, the majority of research focusing on personality at work takes a more static perspective, assuming that personality is fixed and stable. However, an increasingly prominent research line over recent years have started to indicate that personality is not fixed, and that personality can be changed by work and vocational experiences, such as employment status, career roles, and job characteristics, and deliberate training and interventions. This perspective is in line with various studies on personality in the general life domain, which reinforces the changing nature of personality. This book extends from this line of research, with a particular focus on personality change in the work context. By reviewing latest research evidence in this area and also drawing on research in the broader personality and social psychology domain, this book provides a conceptual development on how personality can be changed via work, by societal, organisational, and job-related factors, as well as how individuals can take an active approach in changing their personality at work.