Alain Biénabe (†)
In this monumental and yet compact "chess guide" by the pair of authors Nicolas Giffard and Alain Biénabe the latter has dedicated more than 530(!) pages alone to chess composition in the course of which he throws a light on all recesses of this genre – a real treasure trove for problem friends. You may merely regret that this essential reference work only exists in French.
(R.B., III 2012)