For many professional skills and competencies, this 5-volume set can start you in the right direction or complete existing programs that lack a key skill. You get 100 workshops that range from 1 to 3 hours in length. 

For many professional skills and competencies, this 5-volume set can start you in the right direction or complete existing programs that lack a key skill. You get 100 workshops that range from 1 to 3 hours in length.