Marcia "Marcie" Lang, holds a doctoral degree in Addiction Psychology, is a Licensed Clinical Social Worker, and is a Certified Employee Assistance Professional. Her clinical mental health career spans over 30 years, specializing in workplace consultations, including workplace behavioral and performance issues.  She is the author of the book Hidden Disabilities in the Workplace, which delivers a straightforward, non-nonsense approach to managing employees with non-obvious disabilities in the workplace.