I have 2 books for sale, like new. I used them to pass the extra exam: Amateur Extra 11th Edition manual for use through June 30, 2020 http://www.arrl.org/shop/ARRL-Extra-Class-License-Manual-11th-Edition/ AE Q and A 4th edition. http://www.arrl.org/shop/ARRL-s-Extra-Q-and-A-4th-Edition/ $25 bucks gets both. Herb KT2Y