This is new workshop on the Craftsy platform.
The artist is Suhita Shirodkar. The focus of the workshop is to catch people in motion. The first chapter of the workshop covers the line of action and building onto this line to develop the figure.
The workshop includes a number of videos for practice. In no way do they replace sketching from life. However, they do help you to practice the concept before heading out to sketch!
Here is a link to this wonderful artist. Suhita Shirodkar offers a 50% discount. See the link on her blog.