Daniel Altshuler studied drawing and painting at the Art Institute of Boston and Boston University. At the Museum School, he developed his skills in life studies and human anatomy. In addition, the training he received in clay modeling, stone and wood carving, welding and metal work, casting in plaster and metal, painting, printmaking and photography at the Museum School prepared Altshuler for his future training with sculptor Walker Hancock. After meeting Hancock, prolific in monumental figurative sculpture, portraiture, numismatic work, and bas-relief, Altshuler worked as his sole assistant for the duration of thirteen years. Altshuler’s sculptural training with Hancock ranged from small works to monumental size works. While developing Hancock’s work from statuary to busts in clay, plaster, bronze and marble, Altshuler worked concurrently on his own professional commissions in an adjoining studio. The immediacy of Hancock’s presence and his emphasis on bas-relief with the figure, portraiture and lettering, done in the classical way, developed Altshuler’s skills and knowledge to become the professional sculptor he is today.

Daniel Altshuler has curated two extensive exhibitions on Cape Ann, Massachusetts. The first, “Sculptors of Cape Ann, From Medals to Monuments”, honored the sometimes overlooked, yet significant sculptural roots of this seaport town north of Boston. As a member of the Board of Governors of the Rockport Art Association, Altshuler created, curated and chaired this landmark event honoring 19th and 20th century sculptors who worked and lived within the Cape Ann area. Some 300 numismatic, monumental, statuettes, bas-relief and portrait busts were assembled. Following this successful venture came the nationally recognized exhibition entitled, “Americas Sculptural Heritage, Anchored in Gloucester,” executed for Mayor Bruce Tobey to commemorate the City's 375th Anniversary.

Currently, Altshuler’s numismatic commemorative works include Henry David Thoreau, Paul Revere and Louisa May Alcott.