Book excerpt: A comprehensive but concise overview of Iran's politics, economy, military, foreign policy, and nuclear program. The volume chronicles U.S.-Iran relations under six American presidents and probes five options for dealing with Iran. Organized thematically, this book provides top-level briefings by 50 top experts on Iran (both Iranian and Western authors) and is a practical and accessible "go-to" resource for practitioners, policymakers, academics, and students, as well as a fascinating wealth of information for anyone interested in understanding Iran's pivotal role in world politics.