Canyoningtechnik AdvancedSKU: DCSCA
Author: Eberhardt Hofmann
"The book for course E from the DCS school" (DSC - Deutsche Canyoning Schule)
Evacuation, haulsystems, passing knots, lengthening the rope, cutting rope, floating anchors, from ascent to descent, ascent again on the rope, etc.
That are the themes described in this 220 page Technical Manual.