TfL Press Release - From map to app: TfL and Go Jauntly team up to bring the Walking Tube Map onto people's phones
London Walks: 40 Waterside Walks, Rural Walks and Street Walks with maps and photographs (London Walking Guide): Amazon.co.uk: Daneff, Tiffany, Neil Hyslop, Peter Ryan: 9780718131166: Books
Beating the Bounds Walking App - St Martin-in-the-Fields
London: Sherlock Holmes Self-Guided Walking Tour | GetYourGuide
Five fascinating London walking apps - St Martin-in-the-Fields
London Docklands: Urban Safari Walking Tour: Secret Stories App
Walking Tube Map now accessible through smartphones
Harry Potter Walking Tour London | Harry Potter Self Guided Walking Tour
TrailTale GB Self Guided Walks – Apps on Google Play