Based on the book by Norton Juster. If you would like to purchase a copy of "The Dot & the Line" it appears on the "Glass Bottom Boat" DVD in the "Special Features" section. Here is a link: http://www.chuckjones.com/animation_art/The_Dot__the_Line_-_DVD.html

Highlights from the little-seen animation based on original book illustrations. Some startling work from the man who would go on to do roger rabbit and the Theif and the Cobbler