Art-so-Fine was an illustration studio which contributed to Sesame Street Magazine regularly between 1978 and 1980 and then more intermittently as late as 1991. Their work was included in The Sesame Street Library Vol. 14 ‎and The Sesame Street Treasury Vol. 3.

While some Art-so-fine illustrations included Muppet characters, their output usually had a very design-heavy emphasis, often arranging objects or colored lines in rows, with repeating patterns (often in borders).

Art-so-fine Studios also designed and illustrated the Avon book covers for Isaac Asimov's series of How Did We Find Out About...? science books in the 1980s.