This document compares and contrasts theories of change and logic models. Theories of change involve critical thinking, show the pathway of change, and are more complicated than logic models as they explain what, how, and why change will happen. Theories of change use a backwards design and participatory process. Logic models are simpler descriptions that show what and how change will happen through a list of components. Logic models use a forwards design and individual process. Both are tools used for program design and evaluation or monitoring.