This article provides a historical overview of computer-assisted art assessment, introduces the basic concepts of computerized assessment of art-based instruments (CAABI), and offers a tutorial to assist art therapists in the study of its application. Understanding this emergent technology may assist art therapists in overcoming hesitancy in adopting computerized assessment procedures. The author acknowledges a central challenge to CAABI: the multivariate nature of art assessment greatly complicates analysis. Possible solutions are discussed, including the need for theory-driven introductory courses in assessment and improvements in the standardization, reliability, and validity of art-based instruments. (Contains 1 table.)