CBR14 BINGO: Series, because this book is part of the Ladybird “How it Works” series published in the 1970s. I never pass a Little Free Library without checking out what’s on offer, and one day a few weeks ago I struck gold. Never has one person’s trash become such a treasure. Thanks to Ladybird Books, I was about to learn about how telephones work, or at least how they worked in 1972. This book begins with some history of the telephone and why we need […]