I think so. We never called it that, but we worked with a very young part of me, the adult part of me and we tried but weren't overly successful at working with the teenage part of me. Not sure ifs that's parts work officially, but it was one of the most healing things I have ever done. I am pretty sure I wouldn't be where I am today without it. 'traditional' therapy wouldn't have worked for me on such a deep level, which is what I knew I needed.