2014 0-7734-0068-0 The first English translation of the seminal work of Dr. Heinz Leymann. The term workplace mobbing, or the ganging up of peers and managers against a workmate, was conceptualized by a single scientist, Heinz Leymann in his research to identify a distinct form of collective workplace aggression that has now opened the door to specialization in the field of mobbing and laid the groundwork for its subsequent policies and laws governing human resource management departments globally.