The 
          Harpenden to Hemel 
          Hempstead Railway
        The 
          Nickey Line 
        Written 
          by Sue and Geoff Woodward this book is a must for those interested in 
          the Nickey Line. It very comprehensively covers the history of the Harpenden 
          to Hemel Hempstead Railway in detail from the announcement of the project 
          in 1862 through the years to its demise and its eventual conversion 
          into a cycle track.
        The 
          book is illustrated with many photos from a variety of souces and also 
          includes maps and timetables.
        First 
          published by The Oakwood Press of Oxford in 1996 the book is available 
          at good bookshops.