There are two ways to read this book about American trade associations (TAs). The first way—as an overview of a neglected but important part of the U.S. economy—may be summarized as follows. In chapters 2 and 3 of Solidarity in Strategy, Lyn Spillman provides a useful synthesis of existing historical and sociological research on American TAs as well as a “census” (i.e., a compilation of self-descriptions, organizational features, and key activities of all contemporary U.S. trade associations) conducted by Spillman and colleagues. These chapters make several good points: (a) that TAs have long been very important in the United States. even if they have no formal role in governing the economy, as they do in Western Europe; (b) that TAs are n...