Several of these sketches are published in Mark Baskinger's book on design thinking and sketching titled Drawing Ideas. I also recently taught a User Experience sketching workshop. Feel free to take a look at the slide deck as well as the accompanying handout.

YouTube Sketching Workshop

Every quarter, I teach a User Experience sketching workshop. The workshop focuses on using sketching as a communication tool, as well as introducing sketching tools and methods to help better visualize your ideas. You can take a look at the slide deck from the workshop, as well as the accompanying handout.