Participatory Activist Research, most often in collectives or Teams (PART) works axiologically with this notion of "doing justice" by and for those oppressed by the practices that need changing. This chapter intends to introduce you to action research (AR) broadly and then PART to take up Pat Thomson's suggestion of "doing justice." Firstly we describe two projects (Vignette 1 and 2) where action research informed the methodology so that readers have a context for our subse-quent description of action research and PART. Through Pat Thomson's statement you may have already picked up that this work is fraught with difficulties, as well as rewards, so we also discuss some of the limitations and cautions associated with AR/PART. As you read through the vignettes you may begin to develop a picture for some of these limitations and cautions. To close we will highlight method, the-ory, limitations and cautions in the vignette examples for you to check for under-standing.