This image was acquired from
wikimedia. It was marked as Public Domain or CC0 and is free to use. To verify, go to the source and check the information there.
Keywords from Image Description:
Treedepth.svg treedepth of complete graph complete bipartite graph and path graph In each case the graph is shown with black edges and the underlying tree is shown with yellow edges every graph edge connects an ancestordescendant pair in the tree The complete graph has treedepth three own David Eppstein cczero Uploaded with Graph