The expressive therapies are the use of the creative arts as a form of therapy, including the distinct disciplines expressive arts therapy and the creative arts therapies (art therapy, dance/movement therapy, drama therapy, music therapy, writing therapy, poetry therapy, and psychodrama). The expressive therapies are based on the assumption that people can heal through the various forms of creative expression. Expressive therapists share the belief that through creative expression and the tapping of the imagination, people can examine their body, feelings, emotions, and thought process.

Expressive arts therapy is the practice of using imagery, storytelling, dance, music, drama, poetry, movement, horticulture, dreamwork, and visual arts together, in an integrated way, to foster human growth, development, and healing. Expressive arts therapy is its own distinct therapeutic discipline, an inter-modal discipline where the therapist and client move freely between drawing, dancing, music, drama, and poetry.

According to the National Organization for Arts in Health (NOAH), what distinguishes the six creative arts therapies—art, dance/movement, drama, music and poetry therapy as well as psychodrama—from expressive arts therapy is that expressive arts therapy interventions are designed to include more than one of the "expressive" art forms (art, dance, drama, music, poetry), whereas creative arts therapists, such as art, dance/movement, drama, music, poetry and psychodrama therapists, are often intensively trained and educated to use only one modality in their practice. But NOAH also acknowledged that the terms "are often used interchangeably in the field", and that in any case all such professionals should collaborate closely.

The International Expressive Arts Therapy Association (IEATA) is the responsible organization handling the credentialing of expressive arts therapists.

The National Coalition of Creative Arts Therapies Association (NCCATA) connects all six modalities of the creative arts therapies. However, each modality of the creative arts therapies has its own national association that regulates professional credentials, establishes educational standards and hosts annual conferences for the purpose of exchanging new ideas and research.

Margaret Naumburg, Edith Kramer, Hanna Kwiatkowska and Elinor Ulman have been credited with being the pioneers of the field of sensory art therapy. While all of these scientists made significant contributions, Margaret Naumburg has been hailed the "Mother of Art Therapy". Her work focused on the use of art, mainly as a psychoanalytic diagnostic tool. It followed closely other psychoanalytic practices of the time, and was viewed as the communication of unconscious ideas and emotions that were being expressed by the patient.

Today's art therapy is broken down into three different approaches: psychodynamic, humanistic, and learning and developmental. The psychodynamic approach uses terms such as "transference" and defense mechanism to describe why individuals express the art in the way they do, and why this is an expression of the subconscious. The humanistic approach is more of a positive psychology approach, and is defined by an optimistic view of humans, and how expression through their art allows them to take control over these emotions. The learning and developmental approach focuses on the art therapy as a method to assist children who have emotional and developmental disabilities.

Each national association of the different modalities of expressive therapies sets its own educational standards. In the United States, there are a fair number of colleges that offer approved programs in compliance with the national associations' credentialing requirements.