"World Radio TV handbook began as a result of the Nazi occupation of Denmark in World War II. Listening to foreign radio stations was forbidden, but many Danes tuned into the BBC and other broadcasters to find out what was really happening in the world ... When the WRTH was published, its success was immediate. The first edition was intended only for readers in Denmark, but once its existence became known outside Denmark, there was a steady demand for it ..." (p.20)