Freak them out: Take a stack of stickynotes and do a collage of conceptual drawings on an 11 by 17 sheet.

Or here is a geeky option. Do your library as if it were a cascading style sheet and see if they get what you mean. For instance:

.kids
{
background-color: #00FF00;
fontstyle: learner_truetype;
columns: 2;
}

body
{
spacing: plenty;
image: src="/people/innovative";
}

Ok. That would be pretty geeky and would take too long. But it's fun thinking about librarians trying to figure out what I meant by all this. :)