The basic information about opera (contributors, genres, history, theaters, festivals, etc.), written in simple language, understandable by everyone. A handbook - foundation for music lovers who want to form their own image of the lyric theater and not rely on common and stereotypical opinions. The presentation of the basic elements of opera from its origins to the present day gives the reader-listener the opportunity for knowledge on a technical and historical level, while also allowing them to become familiar with and gain confidence in their inherent musical instinct.