The ARRL Handbook is a world renowned ˝bible˝ of communications. In teaching ham radio classes, where I use my own book ˝Ride the Airwaves with ALFA & ZULU˝, the ARRL Handbook is recommended to students of all ages as the ultimate source of information. Years ago, when I was studying electronic engineering in college, I used the ARRL Handbook often for a clear, practical explanation of technical material. Whether you become a ham or not, this is one book that is a ˝must buy˝!