The volume presents perspectives in the theory of drama and theatre that are new for the following reasons: 1) the contributions reflect the international cooperation in developing drama and theatre as well as its theories; 2) this collection is the first attempt of presenting papers within the context of (Analytical) Theory of Science; 3) it is the first consistent set of papers starting from semiotics a s a meta-theory. The volume is divided into four sections: I Fundamental of Theatre Research, II Theory of Drama and Theatre, III Descriptive Theatre Research, IV Applied Theatre Research....