Project Summary: Griffin, R. (2014). Complete training evaluation: The comprehensive guide to measuring return on investment. Kogan Page. Read Chapters 9, 10, and 11 Phillips, P. (2010). ROI for people who think they hate ROI. Wescott-Abudi, G. (2008). Using return on investment to evaluate project management training. https://roiinstitute.net/wp-content/uploads/2017/02/ROI-Basics-Part-One-Event-Solutions.pdf