Perhaps the most important philosophical movement in the 20th century, phenomenology is also one of the more abstruse and varied disciplines in philosophy. Indeed, it would be quite difficult to give a definitive description of what phenomenology is, as defined by the multifarious practitioners, and an onerous task of sifting through the thousands of pages of primary texts. Moreoever, as I can attest, encountering a phenomenological text for the first time is a daunting experience, like trying to navigate through a large city without a map or guide. While there are several good introductory texts on phenomenology in general (Moran's for example), and many texts discussing the many phenomenologists, Sokolowski has graciously and generously given us a very general and useful introduction to the basic structures of phenomenology as a method. To this extent, Sokolowski's book is strongly Husserlian and, in some aspects, echoes in simplistic terms his very good 1974 book, Husserlian Meditations. This, however, is not to be taken as a deficit. To the contrary, Husserl is the recognized father of phenomenology, and also a writer of terse and often impenetrable verse. Thus, it behooves anyone wishing to begin to study phenomenology to get the gist first before delving into the more difficult texts.
What Sokolowski has done for us is to simply explain phenomenology in much the same way one would explain their hobby or a good book they have read. That is to say that it is casual and clear, and very helpful and informative, without an excess of jargon or unnecessary info. However, Sokolowski does go through pains to clarify and define the terminology implcit in phenomenology, e.g., terms such as noetic, noema, parts, wholes, eidetic intuition, etc.
I cannot agree with one of the reviewers below, who claims that an introduction to phenomenology ought to be historical. For as much as phenomenology evolved since Husserl, it is indeed important to see it in such an historical context, however, when considering phenomenology simply as a method one does not need to know how it was transformed by Heidegger or Sartre. Further, I cannot help but feel comparison to Dermot Moran's sweeping and powerful Introduction to Phenomenology to be misguided; in either case the intentions are different. Besides, Sokolowski does mention the variations of phenomenology over the past century. All the same, the province of Sokolowski's book is an attempt to help us understand HOW TO DO PHENOMENOLOGY, as opposed to other aspects of phenomenolgy such as its history and context.