"This third edition of ARRL's Extra Q & A is your authoritative guide to every question in the Extra (Element 4) question pool--everything you need to pass the top-level Amateur Radio license exam! With more than 700 questions included in the question pool, using ARRL's Extra Q & A is the best way to review for the exam with confidence.Pass the 50-question (Element 4) testIncludes the latest question pool with answer key, for use through ..."