Psychology in Organizations, First edition of Alex Haslam's highly influential text provided a new understanding of organizational behaviour - that all aspects of organizational life are affected by people's social ties and group affiliations. Given its thought-provoking and ground-breaking insight into the way organizational behaviour is thought about, it has proved immensely popular to students in social and organizational psychology as well as other fields of organizational enquiry. This Second Edition has been expanded to include an additional chapter on stress, an area where plenty of social identity and self-categorization research has been conducted in recent times. The text is in a wider, more student-friendly format with an expanded range of pedagogical features.