"Solving the North Korean Nuclear Puzzle is a path-breaking contribution to the debate over how to promote a nuclear-free Korea. Scholars and policymakers alike will find it an invaluable reference source that makes complex technical issues comprehensible to the general reader."
--Selig S. Harrison, Senior Fellow, Century Foundation and Senior Scholar, Woodrow Wilson International Center for Scholars

"'Indispensable' gets tossed around a lot ... but in this case it could not be more apt. The combination of perceptive history, insightful (and bracing) thinking about future scenarios, and a set of fantastically useful appendices make this volume a 'must-have' book for anyone concerned with the North Korean issue. A marvelous achievement."
--Michael J. Mazarr, President, Henry L. Stimson Center, and author, North Korea and the Bomb

"Solving the North Korean Nuclear Puzzle combines technical analysis with satellite imagery to cast new light on North Korea's extraordinarily opaque nuclear program. The authors rely on the universal fact that the laws of physics and chemistry do not change, whether one is in Pyongyang or in Washington, D.C. Their hard science also throws cold water on rabble-rousing flames whipped by partisan opponents of the U.S.-North Korean cooperative engagement. Most important, the authors show that the ultimate resolution of North Korea's nuclear confrontation with the international community still revolves in part around technical issues that will not go away. Eventually, the North Koreans must come clean about their plutonium past or remain isolated and poor. Here, as in the metaphysics of nuclear war that drove the North Korea to mount a nuclear weapons program in the first place, science will play a role. By grounding the North Korea issue in physical analysis, ISIS shows with great clarity the problems that still lie ahead before the North Korean nuclear threat is laid to rest."
--Peter Hayes, Executive Director, Nautilus Institute, Berkeley, California

"The task of writing a book concerning the salient aspects of any countryıs nuclear program is fraught with immense difficulties and hazards. This is especially true if the subject country is the Democratic People's Republic of Korea (DPRK), which has one of the world's most secretive and closed societies. It is also a country that has repeatedly been exposed as deceiving the IAEA and the world regarding the capabilities and intentions of its nuclear program.

With Solving the North Korean Nuclear Puzzle, David Albright and Kevin O'Neill have succeeded in navigating the hazardous political, propaganda, and informational minefields surrounding the DPRK's nuclear program and have compiled what must be considered the definitive unclassified analysis of the DPRK nuclear program available to date. It is detailed, dispassionate, and readable. The book is highly recommended to anyone who has an interest in the DPRK, nuclear proliferation, or the dynamics of international politics."
--Joseph S. Bermudez Jr., Fort Collins, Colorado

"The Institute for Science and International Security has got the straight story, detailed and fact-based. A must-read for everyone concerned about national security issues."
--Mike Moore, senior editor of the Bulletin of the Atomic Scientists

"For anyone needing information about how the Agreed Framework will deal with the major obstacles to come in the next five years or so, this is among the best of the books that have been published."
--George Bunn, Consulting Professor, Institute for International Studies, Center for International Security and Cooperation, Stanford University