Thanks for the welcome.
Ring Around The Sun is a book I borrowed from the library about 20 or more years ago. The book contained a number ideas that stayed with me. A couple of years back I tried to track it down using the little I could remember. This was limited to the fact that it was a classic science fiction book about parallel earth's and involved a spinning top, light bulbs, razors and economics. Thanks to the wonders of Google and against all the odds I managed to identify it again, track down a second hand copy and then discovered I still liked it.
The storyline in The Long Earth is of course quite different, particularly as it is clearly part of a longer story arc, but I was struck by some of the similarities in concept and felt if people liked the new book they might like the classic as well