The Island of Sodor: Its People, History and Railways is a book written by the Rev. W. Awdry and his brother George Awdry and illustrated by Clive Spong. It was first published in 1987 as a hardcover book and was reprinted in 1992 as a spiral-bound book with a map of Sodor.


This is a book about Sodor, dealing with its history, geography and industry in far greater depth than could ever be discussed in the Railway Series books themselves. Most of the background information on the places, people, railways and engines in the Railway Series comes from this book.

The book came about as a result of the Reverend W. Awdry's desire to create a credible and consistent world for his stories. This began with maps of Sodor and was then expanded upon. Awdry and his brother George, who was the librarian of the National Liberal Club, worked out details of Sodor, producing between them a comprehensive set of notes. These notes were compiled and published in this book.

Revealed information

After publication

This book, despite its popularity with Thomas fans, has been out of print since 1992, making copies fairly expensive: some are available on Amazon for a minimum of $500 US. However, some information from this book was reprinted in Sodor: Reading Between the Lines.

There have been several letters to Heinemann, the original publishers, asking if the book could be republished. These have been unsuccessful a sequel of yet.