He returned to the Yale School of Art and Architecture in 1974 where he completed his graduate work in 1976, followed by postgraduate studies at the Musée de l'Orangerie, in Paris.
A few weeks prior to their meeting, Everhart, having absolutely no education in cartooning, found himself involved in a freelance project that required him to draw and present Peanuts[2] renderings to Schulz's studios.
A few years later, while still painting full-time on his previous body of work in his studio, Everhart began drawing special projects for Schulz and United Media,[3] both in New York City and Tokyo.
Everhart recalls lying in a hospital bed surrounded by enough flowers to open a florist shop, piles of art books and a stack of Peanuts comic strips sent to him by Schulz.
Over the next ten years S2 Art editions and Tom Everhart would create an astonishing body of lithography work consisting of over seventy-four lithographs.
The ongoing trips between French Polynesia and Venice, California have had a significant effect on the paintings most easily observed in the luminous color palette.
The Charles M. Schulz Museum opened in August 2002 and the following year November 14, 2003 Everhart had the honor of presenting his works in a solo exhibition titled "Under The Influence".
In 2004 Everhart showed a group of nine large scaled paintings titled Dots Dogs Drips with the S2 Art Gallery in Chicago that then traveled to Osaka and Tokyo in 2005.
Everhart continues to lecture around the world on the artwork of Charles M. Schulz and to communicate the unique collaborative relationship they shared, as a cartoonist and a painter.