Mark Pertijs holds a Master of Science degree in Clinical Language, Speech and Hearing Sciences. He is a lecturer in fluency disorders at Utrecht University of Applied Sciences. He developed a special policy on unimpeded learning for students who stutter. As a speech and language therapist, he has extensive experience in working with persons who stutter. Since 2012 he is involved in the development and implementation of an “Evidence-based guideline for developmental stuttering in children and adults” in cooperation with the CBO Dutch Institute for Healthcare Improvement. He represents the interests of the Dutch Association of Stuttering Therapy (NVST) in ECSF.