In this channel of Youtube you will find all kinds of videos about the safety in the mountain, videos that include from most appropiate material, more used knots and how top perform them in acorrect and simple way, prevention of irrigation situations, firts aid. We can also find a bloght has the same name in which we find are in forcement of this material in written form like for example the 5 essential knots in the mountain as they are the dynamic knots, eight knot, Hitch knot, Marchard knot and the Prusik knot.
Encorda2 (2010):https://www.youtube.com/user/Encorda2
Partal,P (2018). Encorda2:https://encorda2.com/
All Climb Spain 