DISC Manual
Latest edition of the DISC Manual for DISC Certification and studying for the Science of Behaviors. $70.80 includes shipping
Emotions of Normal People
The original DISC as described by William Marston, the creator of DISC. Marston also invented the first lie detector and the Wonder Woman Comic character. $38.95 includes shipping
Types Of Men
The original motivators as describe by Eduard Spranger, Psychologist, Teacher, Philosopher $38.95 includes shipping