Telephone

Some people consider the telephone one of the most important inventions of all time, and it now links people across the globe. The book opens with a look at the telephone as it is used today, then turns back to trace how the device came to be and how it grew and changed.

Later sections examine the telephone's effect on everyday life and consider how it may function in the years ahead. A profile, a diagram, a timeline, and other supporting features accompany the main text.