Seasonal Arts and Crafts for Kids: Holiday Crafts and Special Days
M.C. Escher (1898-1972) was a Dutch illustrator known for his optical illusions, tessellated repeating patterns, and intricately detailed black-and-white images illustrating mathematical principals.
First thing you'll probably notice, is that this site is in Dutch.
Named after the image on a box of Droste brand chocolate, the Drost effect is a Dutch term for a recursive image that includes a picture of itself.
Among his [Escher's] greatest admirers were mathematicians, who recognized in his work an extraordinary visualization of mathematical principles.
Object 3 of 24. Created while Escher was still a student at the School for Architecture and Decorative Arts in Haarlem, this is the first print to demonstrate his theory of the regular division of a plane.
The Official M.C. Escher Website, published by the M.C. Escher Foundation, has a biography, a quotes page, six picture galleries, and a good Escher bibliography.
A You-tube .. but with only educational content - what a great idea!