Pro phone. Illustrated encyclopedia for children and adults

Here is a unique book that has no analogues in the world! It contains bit by bit the history of the invention of the phone and its further development and transformation.
At all times, they tried to speed up the process of communication at a distance, and only in the second half of the 19th century did they manage to solve this difficult problem. The invention of the telegraph and after him the phone led to a sharp jump in technological progress. But the invention of the phone is an accident.
Who and how invented the first phone? Who was called a telephone lady? What phones are the most popular in the world today and what new products await us in the future? You will learn all this and much more from this book.
The perfect book for family reading is guaranteed to be interesting for both children and adults!