`As indispensable as ever.' NOD & Conversion `An invaluable source of objective information. It continues to be one of the most valuable reference works for all those interested in peace and security issues.' New World `Anyone working seriously in the field of peace research and security policy waits each year for the new SIPRI Yearbook to replace the old. It is quite simply the one book in the field which is indispensible ... It is in every sense a mature product. Even as a reference work - to find out who has signed what and when which agreement came into force - it is essential. The strength of the publication is quite simply the depth and quality of the data and the high standard of the authors ... vital for study if one is to avoid simplistic or false generalisations.' Roger Williamson, Crucible, 36th year July-September 1997