- E-bookThe Peaks of the Balkans TrailRudolf Abraham
- E-bookThe Mountains of MontenegroRudolf Abraham
- E-bookWalks and Treks in CroatiaRudolf Abraham
- E-bookWalking in the SalzkammergutRudolf Abraham
- E-bookWalking St Cuthbert's WayRudolf Abraham
- E-bookHiking Slovenia's Juliana TrailRudolf Abraham
- E-bookTrekking in Torres del PaineRudolf Abraham
- E-bookWalking St Oswald's Way and Northumberland Coast PathRudolf Abraham