Naomi Ellemers has a PhD from the University of Groningen and is currently a Full Professor in social and organizational psychology at Leiden University, the Netherlands. Her research focuses on group processes and intergroup relations, and their effects on social behaviour in organizations. Dr. Ellemers has published extensively on this topic, for which she received several substantial research grants.

• Foreword: John C Turner (Australia National University). 1. Social Identity Theory: Where Are We Now?: John C Turner.2. An Introduction to the Contributors: Naomi Ellemers, Russell Spears and Bertjan Doosje.3. Types Of Identity Threats And Their Self Esteem Consequences: Nyla Branscombe (University of Kansas), Naomi Ellemers, Russell Spears and Bertjan Doosje.4. Dealing With Deprivation: The Role of Social Identity Salience: Heather Smith (Berkeley) and Russell Spears.5. Commitment and the Context of Intergroup Perceptions: Russell Spears, Naomi Ellemers and Bertjan Doosje.6. Identity Needs and Contextual Restrictions: Naomi Ellemers, Manuela Barreto (Free University, Amsterdam) and Russell Spears.7. Social Identity, Social Norms and Social Influence: Tom Postmes (University of Amsterdam), Russell Spears and Martin Lea (University of Manchester).8. Linguistic Communication Biases in Intra and Intergroup Contexts: Russell Spears, Daniel Wigboldus (Free University, Amsterdam) and Gun Semin (Free University, Amsterdam).9. Group Commitment and Intergroup Behavior: Bertjan Doosje, Naomi Ellemers and Russell Spears.10. Affect, Commitment and Collective Effort: Naomi Ellemers, Jaap Ouwerkerk (Free University, Amsterdam) and Dick de Gilder (University of Amsterdam).11. Group Distinctiveness and Intergroup Discrimination: Russell Spears, Tony Manstead (University of Amsterdam) and Jolanda Jetten (University of Amsterdam).