Most forms of psychotherapy use only spoken conversation, though some also use various other forms of communication such as the written word, art work or touch. (sciencedaily.com)
Using multiple forms of communication in the classroom, along with supporting native language development, takes skill and practice. (gse.harvard.edu)
In fact, email beat all other channels as the preferred form of communication with businesses by a wide margin, including websites, postal mail, voice and fax. (lawyercasting.com)