This book focuses on interpretation corpora which is one of the major subjects of research in interpreting studies. It explores key issues such as corpus design and representativeness, as well as aims and challenges of the application of corpus-linguistics principles and methods to interpreting. Interpreting corpora represent a real challenge because of the very nature of the items they are composed of. The oral dimension, the unavoidable stage of transcription and the difficulties in relying on authentic data are only some of the aspects that make the creation of interpreting corpora a complex, challenging and time-consuming activity. The book discusses the theoretical problems and presents the working phases leading to the collection of five different interpreting corpora. The variety of approaches adopted by each research team highlights the fact that aims, interrogation methods and corpus design are intertwined. A survey of the studies carried out so far using these five interpreting corpora identifies data comparability as the core issue of corpus-based interpreting studies.