The publishers of this edition are arrant idiots. The book, in its authentic form, is a landmark collection of essays by Karl Mannheim which was first published in German under the title "Ideologie und Utopie." Kessinger Publishing, LLC has mis-titled this volume by inserting the word "An" in front of the translated words: "Ideology and Utopia." They have done this either because members of Kessinger's editorial staff do not know the real title or, more likely, because they figure that such insertion insures that their caricature will appear before any of the authentically titled versions on an Amazon search. For that reason alone this edition would deserve to be avoided--even if that left no alternative but to learn German and read the original. There are alternatives however. These range in price from dirt cheap for a used umpteenth printing to sky high for a collectible edition. Take your pick of those, I advise, but do not choose this Kessinger travesty.
The work itself (in a respectable edition) stands as a highly readable and much discussed introduction to a specialized branch of sociology known as the sociology of knowledge. The two principal exponents of this specialized study are Mannheim and Max Scheler. A search on their names will produce an intriguing list of titles available on Amazon, but "Ideology and Utopia" is the right place to begin for anyone not already familiar with the literature. (Also, worth considering is the volume: "From Karl Mannheim" which contains selections from a broad range of Mannheim's writings together with editors' and translator's introductions that set forth the development and the interpretive tradition of Mannheim's body of work.) "Ideology and Utopia" includes a twenty page preface by Louis Wirth (one of its translators) which well serves the intention of acquainting an English speaking audience with the basics of Mannheim's approach.
Today, the term 'Utopian' is achieving a new currency--this time as an element in the conservative characterization of left wing political ideas. Such reappearance of the concept of 'utopia' within the contemporary ideological contest makes it very timely to visit (or revisit) Mannheim's classic work of critique and analysis in which the originality of the author's contribution consists precisely in his juxtaposing the idea of 'utopian' to 'ideological' rather than, as is usual, to 'realistic' [or to 'realizable'].
The following quote from one of the essays in "Ideology and Utopia" suggests (but does not fully encompass) Mannheim's idea of both the limitations on human thought and the possibilities for its advancement--"Strictly speaking it is incorrect to say that the single individual thinks. Rather it is more correct to insist that he participates in thinking further what other men have thought before him."
On the bottom line: consider the author; experience the work; but avoid the edition.