The Second Edition of the ESI manual includes new information needed to be able to use the ESI software and interpret the ESI reports!
A current edition of the ESI manual is provided to all participants of upcoming ESI training courses. To use the ESI for clinical or research purposes, an occupational therapist must take an ESI training course and calibrate as a valid and reliable ESI rater.

Fisher, A. G., & Griswold, L. A. (2010). Evaluation of social interaction, 2nd Edition. Fort Collins, CO: Three Star Press.