Psychotherapy is a range of techniques which use only dialogue and communication and which are designed to improve the mental health of a client or patient, or to improve group relationships (such as in a family). 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. Commonly psychotherapy involves a therapist and client(s) - and in family therapy several family members or even other members from their social network - who discuss their issues in an effort to discover underlying problems and to find constructive solutions.