The book Acting Techniques in the 20th Century has been published twice in Slovakia – this is the book’s third edition, amended and published for the first time in English. In the book, Mistrík summarizes the knowledge of various acting techniques and theories that were used in twentieth-century theatre. In clearly arranged chapters, owing to an engaging text, which is enriched by a large selection of historical photographs, readers can get behind the scenes of the theatre and extend their understanding of the aesthetic and social contexts of theatre art. This is not an acting textbook, nor does it aspire to present a systematic history of acting – it is mainly focused on the most important personalities and theatres, leaving it at the readers‘ discretion whether they want to look for inspiration for their artistic growth and theatrical work. It’s a book of inspirations for twenty-first century acting.