Illustrations

• Compared to photography, an illustration can more easily portray the fantastic and the abstract: things that aren't real.

• Illustration can create an imaginary landscape for the mind to roam through. Symbols can be easily manipulated, stretched, explored.

• Another aspect is mood. While photos of real people can make
  us identify with them, an
  illustration can make us feel a
  more complex set of emotions...

• Or even a simpler emotion. Think cartoons. Comics.
  

"Black stress," 1993
HealthQuest magazine

"Airport traffic," 1992
The Seattle Times
Christine Castigliano