Tom Jackson 
Telephones and Cell Phones [PDF ebook] 

Technology has a story to tell. Find out about the history of the machines and gadgets that make the modern world, from spacecraft that visit other planets to web-enabled glasses and a car that can outrun airplanes. Learn where everyday technology began and take a look at how it might change in the future. Today, a machine that fits in a pocket can be used to contact anyone on Earth-and even in space! But how did people communicate in the past?