The book offers the reader a clear model of reflection on a work of theater art, it is a summary of 20th century knowledge on this subject, a specific synthesis of the consequences and achievements of contemporary theatrical autonomism. Krzysztof Plesniarowicz defines an antinomy that fits exclusively within the framework of a theatrical work: illusion/disillusion - instead of an opposition that is now generally obsolete: between a literary work (drama) and an unliterary theatrical work (spectacle).