Amateur radio test books
Ham Radio License Manual - American Radio Relay League
Use this book, and pass the 35question license test. Includes the latest question pool with answer key, for use beginning July 1, 2014. Designed for selfstudy and for classroom use.
Easy Way Ham Books - Amateur Radio
November 21, 2016: Added link to reference materials for general and extra pools click the book icon for study materials; March 9, 2016: Modified 2016 Extra pool with latest errata from NCVEC; See site
Ham Radio Flashcards with Ham Radio Practice Questions
Free ham radio flash cards, practice tests, and question pools as well as introduction to ham radio and explanations for questions.