It is about the expression of feeling with art as the medium. It's a means of self-expression that is oriented towards process not result. It's not to be judged as good or bad art or the style as right or wrong . Essentially whatever is created is the perfect expression of the client's feelings in that moment. Therapeutic art is commonly used with children since it's such a normal form of speech for a child.
Adults have the same capability.
Sometimes this work is directed such as draw a tree. More often, it isn't. The color, size and medium a person chooses as well as whether a piece is representational or not are all useful information. The degree of vigor, sounds and body language that go into creating can also provide insight into a client's issues. Click title for full article.