Having said that, this is an interesting video tutorial by Petzl that analyses the key technical elements such as placing an ice screw, setting up a belay and making an Abalakov V-thread for abseils.
Ice climbing belays: 1. The ice screws should be positioned almost vertically one above the other, and no closer than 30cm, so as to create an acute angle. Place screw gate carabiners into the ice ...