This book is the first comprehensive study of administrative reports. It investigates the reports prepared in the EU and national settings using a multidimensional genre analysis model. The book provides an account of the context of production and use of the reports and a corpus analysis of the macrostructure, lexico-grammatical patterns and multimodal aspects of the reports. Administrative reports are a hybrid and dynamic genre with salient linguistic features and two varieties: a highly institutionalised EU one, and a more varied national one. The reports are a powerful instrument in the communication policy of the institutions, performing informative and image-building functions. The book is an important contribution to the study of administrative language and the Eurolect.