This new book includes the complete question pool with answers for the Extra class exam. Plus a large section of the book is devoted to explaining the theory behind the questions, so you can actually understand the concepts behind the questions. All the F.C.C. rules are covered with clear explanations. For exams given from July 1, 2008 to June 30, 2012. This is the revised Ninth Edition with exam PC CD. ©2008-2011 A.R.R.L.