There is no such thing as information overload, just bad design. If something is cluttered and/or confusing, fix your design.
Edward TufteScience and art have in common intense seeing, the wide-eyed observing that generates empirical information.
Edward TufteIn general, I think audiences are a lot smarter than people think. So, it's not "know your audience", it's "respect your audience, and really know your content".
Edward TuftePublic discussions are part of what it takes to make changes in the trillions of graphics published each year.
Edward Tufte