it's a course to help people cope with their stutter and help them stop or reduce how much they do it. they have courses all over the world. where do you live? https://www.mcguireprogramme.com/en you can check out "school for stammerers" on youtube. https://youtu.be/bNkOeIBKZNs I did this course in 2002. 4 days later I telephoned my friends and told them all about it, without stuttering.