Here are a few books I have. Some are more technical than others, but they are all worth reading. Unfortunately most of these books are out of print, so you may struggle to get hold of them.

Title: Automatic Telephones.
Author: F.A. Ellson.
Published: Pitmans Primers 1924.

Ellson was a GPO Engineer and the book details the UK automatic telephone system at the time. The ATM system is featured and the book compares this to other auto systems. The main features of the ATM Director system are also discussed. This is a very interesting read.

Title: Telephony.
Author: Herbert & Procter / Atkinson.
Published: Pitmans.

There are two versions of this book. The pre World War Two edition is by Herbert and Procter. The post-war revised edition is by Atkinson. Both cover the same subjects with the later edition including some newer equipment. Both contain extensive circuit diagrams and technical details on the British telecommunications system at the time. Each edition consists of two volumes. These are invaluable reference books.

Title: Old Telephones.
Author: Andrew Emmerson.
Published: Shire Publications Ltd. 1986

Essential reading for those interested in old telephones. Only 32 pages but packed full of interesting information and good quality photographs.

Title: Telefoni.
Author: Franco Soresini.
Published: BE_MA Editrice 1989.

This Italian book is full of great photographs. There are a few British telephones here but the book is primarily concerned with Italian equipment. The text is limited to descriptions of the telephones in each photograph. Not highly recommended if you are only interested in UK equipment.

Title: Beyond Babel - New directions in communications.
Author: Brenda Maddox.
Published: Andre Deutsch 1972.

This strangely titled book is basically a criticism of the state of the UK telephone network at the start of the 1970s. It is easy to read and has some interesting statistics and great insights into the future of the industry.

Title: Power of Speech.
Author: Peter Young.
Published: George Allen & Unwin 1983.

Subtitled: A History of Standard Telephones and Cables 1883-1983. The title says it all! This is a very interesting read.

Title: Between the Lines.
Author: Robert C Morris.
Published:

Subtitled: A Personal History of the British Public Telephone and Telecommunications Service 1870-1990. Again, the title says it all! Interesting and some great pictures. Although the "personal" recollections do not, in fact, stretch back to 1870!

Title: How It Works - The Telephone.
Author:
Published: Ladybird 1972.

This childrens book is entertaining with some good pictures. Great Fun!

Title: London International Telephone Exchange.
Author:
Published: GPO 1934.

This 1934 GPO pamphlet details this new installation.

Title: Our Telegraph and Telephone Services.
Author:
Published: GPO.

This is another GPO publication. It is a truly dreadful childrens story. It's saving grace is that it has some good pictures.

Title: Telephone Installation Handbook.
Author:Steve Roberts.
Published:Newnes 1997.

A mine of useful information on the current UK telephone network. This is a useful reference book. There is a new edition, published in 2001.

Title: Telephone Boxes.
Author: Gavin Stamp.
Published:

A good read with loads of pictures. I'd have preferred more information on the contents of the kiosks, but still worth having - very interesting.

Title: Telephone Boxes.
Author: Neil Johannessen.
Published: Shire Albums.

Another small book on the history of the UK telephone kiosk. Similar comments to above.

Title: Requiem for a Red Box.
Author: John Timpson.
Published:Pyramid Books 1989.
ISBN:1-855-10008-8.

Nice coffee table book on the history of the UK telephone kiosk. Similar comments to above.

Title: The Story of The Telephone.
Author: J. H. Robertson.
Published: Pitman 1947.

An excellent read. Describes (in a slightly pedantic fashion) the development of the telephone system in the UK.

Title: The Telephone and Telephone Exchanges.
Author: J. E. Kingsbury.
Published: 1915.

A fascinating read detailing the development of the telephone to 1915.

Title: The Rob Grant (Vaguely British) Telephone Identifier.
Author: Rob Grant.
Published: Rob Grant.

Essential resource for identification purposes.

Title: Telephone Accessories You Can Build.
Author: Jules H. Gilder.
Published: Hayden.

U.S. book. Content now quite dated, but some interesting circuits.

Title: More Telephone Accessories You Can Build.
Author: Jules H. Gilder.
Published: Hayden.

U.S. book. Comments as above.

Title: Electronic Telephone Projects.
Author: Anthony J. Caristi.
Published: Sams.

U.S. book. Comments as above.

Title: Three Victorian Telephone Directories.
Author:
Published: David & Charles Reprints 1972.

Facsimille copy of three London telephone directories from 1884/5. Not a riveting read, but certainly interesting. I'd love to know how many copies of this book the publishers sold!

Title: Introduction to Telephony and Telegraphy
Author: E.H. Jolley.
Published: Pitman 1968.

Good book, lots of useful stuff here.

Title: The Automatic Telephone System in London.
Author:
Published: GPO.

Interesting booklet telling the subscriber how the new "Director" system worked in London.