Writing Mark S. Henriksen Other Credits The Firm Basics - Abs, Buns & Thighs Writer 2014 The Firm - Body Sculpting Basics Writer 2012 The Firm - Time Crunch Writer 2012 The Firm - Maximum Body Sculpting Writer 2003 The Firm Parts - Sculpted, Buns, Hips & Thighs Writer 1998 The Firm Parts - Tough Tape Writer 1998 The Firm Basics - Sculpting with Weights Writer 1997 The Firm Cross Trainers - Firm Strength Writer 1995 The Firm Cross Trainers - Firm Cardio Writer 1995 Agent-readable