Molly E. Holzschlag is a well-known Web standards advocate, instructor, and author. She is Group Lead for the Web Standards Project (WaSP), an invited expert to the HTML and GEO working groups at the World Wide Web Consortium (W3C), and an author of more than 30 web design and development related books. Molly's enthusiasm and professionalism have made her one of the Top 25 Most Influential Women on the Web.

How products behave and users react is the responsibility of an interactive designer. What are key points to consider, typical mistakes to avoid, and principles to follow - Dan Saffer, an experience design director at the design consultancy Adaptive Path, shares in his interview to DI.