"To find a certiied Feldenkrais practitioner near you,contact The Feldenkrais Guild by calling its national office in Overland Park, Kansas, at 913-492-1444" Cited from: USAir Magazine, November 1991 p.25 in an article"Muscle Sense" by Kelly L. Williams, pp 20-25 which describes the Feldenfrais method and delineates the rationale behind the movements created by Moshe Feldenfrais.