Zymet, Gregory  
   Specializing in gesture and stylized line illustrations, drawn with only a few lines.
   http://www.gestureart.com/

Zlotsky, Boris  
   Featuring photo-realistic art and commercial illustration, produced with a combination of acrylic airbrush, pencil, and digital media.
   http://www.boriszlotsky.com

Zimmerman, Robert  
   Humorous illustration for magazines, agencies and packaging. The portfolio also features interactive Flash design.
   http://www.zimm.net

Zecca, Katherine  
   Watercolor, gouache and colored pencil illustrations for book covers, posters and web. Specializes in illustrating fauna and children's books. Original paintings are available for purchase.
   http://www.katherinezecca.com/

Zed  
   This Brazilian artist presents his illustrations, logo design and comics. [Requires Flash]
   http://www.zedonline.com.br