As it was a book that started me on this adventure, here are a few books that are relevant with links.
A Walk in the Woods – Bill Bryson (Bill’s backlist is also brilliant)
http://www.waterstones.com/waterstonesweb/displayProductDetails.do?sku=4224134
Long-Distance Hiking: Lessons from the Appalachian Trail – Roland Mueser.
Appalachian Trail Data Book (2009)
Wild Places – Robert Macfarlane
Lost Lore – Una McGovern and Paul Jenner
Also I need audio books to listen to whilst I train and do the walk if you have any you might lend me. If you do please contact me on archangelagent@gmail.com.