Esther was an American painter mainly associated with the abstract expressionist movement in Boston in the 1940s and 1950s.
She is one of the foremost authorities on encaustic painting techniques.
Esther studied at the School of the Museum of Fine Arts in Boston, and taught there with Karl Zerbe.
It was at the Museum School that she began painting with encaustic, a mixture of pigment and hot wax.
She first received acclaim as a painter of “organic abstractions” in the 1940s, when she exhibited with a group of other emerging artists later known as the Boston Expressionists.
Esther work was more abstract than that of Zerbe and other Boston figurative expressionists.
After marrying the composer Harold Shapero in 1945, Geller continued painting and exhibiting, and taught art classes at the DeCordova Museum in Lincoln, Massachusetts.
Esther has been active as a painter for over sixty years.
As recently as 2012 her encaustics were shown in a major exhibition, The Future of the Past: Encaustic Art in the 21st Century, at the Mills Gallery in Boston.
The exhibit also included a video demonstration by Karl Zerbe and an interview with Geller.
Her works are included in the permanent collections of the Boston Museum of Fine Arts, the Addison Gallery of American Art, and the DeCordova Museum.
Art historian Judith Bookbinder names Geller, along with David Aronson and others, as one of the emerging artists in the 1940s who influenced the direction of modern art in Boston.
In 2002, Esther early work was included in The Visionary Decade: New Voices in Art in 1940s Boston at Boston University, a retrospective of the vibrant art scene in postwar Boston.
Jean Gibran, wife of the artist Kahlil Gibran, names Geller as one those “who have contributed in unique ways to the flowering of Boston Expressionism.”
Esther is a leading expert on encaustic painting, having experimented with the medium and developed her own methods, which she has used and taught for decades.
An interview in which she discussed her methods was featured in Arts magazine in 1957, and she has contributed to books on the subject.
Esther died at age 93 in October 2015.