The People's Post: A Narrative History of the Post Office

As Royal Mail faces an uncertain future, Dominic Sandbrook charts the historical development of the post office and examines its profound impact on literacy, free speech, commerce and communication.
Launched in 1516 by Henry VIII, it was intended to support royal communications and increase intelligence. The rise in literacy, trade and interest stimulated a demand for a public service. After the advent of the Penny Black in 1840, it became affordable to the public. Over the centuries, the Post Office has become a much-loved social institution, linking people together and extending their vision outward into the broader world. How the people made it their own is a fascinating story that has been untold.

It's called Royal Mail but it should be affectionately known as the People's Post.