The author of this British book states that "The reader must not expect to find, in this historical volume, either an analysis of Trade Union organisation, policy, and methods, or any judgment upon the validity of its assumptions, its economic achievements, or its limitations." The book instead explains how, since the original publication of the book in 1890, the trade union movement has grown to encompass 60% of all workers, and how it may now form the foundation for a new political party.

The author is convinced that there is a ruling class in America today. He examines the American power structure as it has developed in the 1980s. He presents systematic, empirical evidence that a fixed group of privileged people dominates the American economy and government. The book demonstrates that an upper class comprising only one-half of one percent of the population occupies key positions within the corporate community. It shows how leaders within this "power elite" reach government and dominate it through processes of special-interest lobbying, policy planning and candidate selection. It is written not to promote any political ideology, but to analyze our society with accuracy.