RADIO: a technical book my grandmother wrote when she was 17

In 1940, my grandmother graduated from the Central High School of Commerce in Toronto. As a condition of graduating, she had to write a book-length thesis project, and hers was called "RADIO," and was a history of radio to date, with emphasis on its applications to business. My grandmother pulled this out at a family gathering last year, and I passed it on to Bobby Glushko, who was working with Hathi Trust at the time on a book-scanning project (he's since landed a plum gig at the University of Toronto), and he arranged to have the book scanned and uploaded to the Internet Archive under a CC-BY-SA license. I think it's a fascinating read, especially considering my grandmother wrote it when she was 17 years old.

Radio (1940)