Drawing upon both Husserl's published works and posthumous material, this book incorporates the results of Husserl research. It is divided into three parts, roughly following the chronological development of Husserl's thought, from his early analyses of logic and intentionality, through his mature transcendental-philosophical analyses of reduction and constitution, to his late analyses of intersubjectivity and lifeworld. It can consequently serve as a concise and updated introduction to his thinking.