<http://schema.org/description>
"There's no hard science in creating the absolute best design, but there are rules and guidelines that will lead you towards better results. Carefully studying things like form, typography ..."^^<http://www.w3.org/2001/XMLSchema#string>
<http://thenextweb.com/dd/2012/10/01/dive-fundamentals-web-design-clear-concise-guide/>