Back of the Napkin - Style Example

I have read Dan Roam's book, Back of the Napkin...I just ordered the workbook as it appears that this might help me embrace a little practice that was missing from my first read.  I love the look of hand-drawn diagrams.  I love the simplicity of this kind of'visual explanation. This video below serves as a good example of the visual style Jimmy Ray and I are pursuing with a few projects as we seek to add some additional elements to our TechWiseTV production tool box.  So look at this with both the content in mind (what Dan is saying) but also much of the style in which he delivers it within the video...the white background, the use of sound effects to bring some drawings to life, etc.