Book excerpt: The Handbook of Intergroup Communication brings together research, theory and application on traditional as well as innovative intergroup situations, exploring the communication aspect of these groups. The "intergroup" umbrella integrates and transcends many traditional conceptual boundaries in communication (including media, health, intercultural, organizational); hence the Handbook will appeal to scholars and graduate students not only in the core area of intergroup communication itself, but across varying terrains of study in communication and beyond, including intergroup relations and social psychology.