Summary This book is an introdoctory book about the Court of Justice of the European Union (CJEU). The book is the first book about the CJEU which is written in Japanese. It explains what the CJEU is, how the CJEU functions, the judicial procedures and judicial statistics. In addition, the book mentions to interviews with the president, the first adovocate general and others of the CJEU, which the author had.