Brian, an electronics enthusiast, has taught radio classes for more years than he cares to remember. The 'Hamology' course book has its origins as notes and handouts - when he was reluctantly 'talked into' tutoring an amateur radio course. In 1987, the handouts were formally published in print as a course book. A second expanded print edition was published three years later. In 2012, it has been completely revised and updated, and now published as an electronic EPUB edition. Brian trusts you find this edition a valuable resource, whether as a textbook or as a useful reference. A must for every 'library'.