Anthony continues his Topology for Animation series and dives a little deeper into topology.
Following on from the Elbow, we see if that can be directly applied to other areas or if minor adjustments give better results.
Also covered is the importance of good planning, so that one isn't adding geometry while trying to work out if the edge flow is correct at the same time.
Along with a quick look at possible sources for the initial mesh that you want to model for animation.