TrekkingDamian Hall, Dave Costello, Billi Bierling, Alex Treadway, Albino Santos Mosquera · First published 2019Open the Tome
Trekking BeyondAlex Treadway, Dave Costello, Billi Bierling, Damian Hall · First published 2018Open the Tome
Ueli SteckUeli Steck, Billi Bierling, Steve House, Karin Steinbach Tarnutzer · First published 2018Open the Tome
Mountains of My HeartGerlinde Kaltenbrunner, Karin Steinbach-Tarnutzer, Billi Bierling · First published 2014Open the Tome
