The Tacitus Encyclopedia is the only complete reference of its kind in the field of Tacitean studies. Spanning two volumes, this unprecedented resource contains more than 1,000 entries covering every person and place named in all extant works of Roman historian and politician Tacitus (c. 56-120 CE). Written by an international collaboration of diverse contributors, the entries contextualize individuals and places named in Tacitus and show their relationship to the larger Tacitean corpus. Alphabetized and cross-referenced entries contain general descriptions and background information of items as they appear in the texts, citations to ancient sources and relevant scholarship, and suggested readings. Designed to be a starting point for further research, the Encyclopedia also includes 165 key concepts topics related to the study of Tacitus, including ancient historiography, history, social history, gender and sexuality, literary criticism, ancient authors, reception, and material culture.