The World of Ham Radio, 1901-1950: A Social History by Richard A. Bartlett
**Intact Gift Giving Condition book**
Because of the few government restrictions and the low monetary investment required, the concept of ham radio appealed to various people. During the first fifty years of the twentieth century, ham radio went from being an experiment to virtually an art form. More than just a simple hobby, however, ham radio required its operators to understand radio theory, be able to trace a schematic and know how to build a transmitter and receiver with whatever material they might have available. With the advent of World War II and the increased need for cutting-edge communications, the United States government drew upon the knowledge and skill of these amateur ham radio operators.