Book excerpt: This book is a comprehensive survey of the current state of assessment in the field of drama therapy. Drama therapy assessment methods must be embedded within the discipline's core philosophy, and thus drama therapy will not develop fully as an independent field until it can generate its own assessment criteria and methods. Specific topics include: (1) history of assessment in the field of drama therapy; (2) concepts and practices of assessment in drama therapy; (3) state of the art in drama therapy assessment; (4) Diagnostic Role Playing Test; (5) Drama Therapy Role Play Interview; (6) Six Pi.