Book excerpt: Theoretically innovative and empirically expansive, A Small State's Guide to Influence in World Politics sets out to become the new authority for the study of small states in International Relations (IR). The book's explanatory approach allows for a comparison of small states' situations and relationships across a global selection of some twenty cases in issues of international security, economy, and institutions. In doing so, it shows how IR's longstandingneglect of small states is a missed opportunity--not just for understanding small states but for developing better theories of IR.