This 2007 edition of the Nuclear Energy Agency's annual "brown book" finds that 2006 was a year of major activity within the nuclear sector. For the first time, it includes projections lengthened to 2030 and information on the development of new centrifuge enrichment capacity in member countries. As always, it provides readers a comprehensive and easy-to-access overview of the current situation and expected trends in various sectors of the nuclear fuel cycle.