Instruct: Classify a given review into positive or negative sentiment.
Query: A Classic

There is no better book that I have read on the theory and practice of theatre. As Peter Brook says in the preface, "Grotowski is unique. Why? Because no-one else in the world, to my knowledge, no-one since Stanislavsky, has investigated the nature of acting, its phenomenon, its meaning, the nature and science of its mental-physical-emotional processes as deeply and completely as Grotowski."Grotowski argues effectively that the split of the stage and the screen necessitates that the stage redefine its focus. The screen with its higher budget and countless retakes will always beat the stage in richness. So, Grotowski posits "If it [the stage] cannot be richer than the cinema, then let it be poor." The rest of the book illustrates what such a poor theatre means in practice. Brilliant.