Susan Loy (born February 26, 1951) is a North American artist, calligrapher, and author best known for her "Literary Calligraphy" watercolor paintings of the Language of Flowers and the White House Easter Egg Roll.

[6] During the 1980s, Loy developed her style of combining hand-lettered texts in the form of a mandala, a Sanskrit word that means circle.

[20] [21] Loy was chosen to serve as 1998 Artist-on-the-Lawn and to create the program cover for the 1998 White House Easter Egg Roll and to capture impressions of that event.

[25] Loy's hand-lettering of the U.S. Constitution project began after the September 11 attacks in 2001 when she was stopped by the police on three separate occasions beginning in May 2002.

[3] Together, they increased their number of shows and festivals, expanded the company and built a shop to accommodate cutting custom mats, picture framing, and selling reproductions and stationery.

In 2003, Literary Calligraphy estimated that it sold 3,000 reproductions per year, had a mailing list of 35,000 and employed up to eight full- and part-time persons.

They continue to sell reproductions and stationery in the United States at amazon.com [11] In the autumn of 2017, Susan and her husband announced that they were leaving the American arts and craft show circuit, closing their custom framing operations, and moving to Prague in the Czech Republic.

[32] [33] Loy's major project for the Czech Unitarian Church was commemorating the Flower Communion introduced by Norbert Čapek in 1923.

[30] On June 14, 2020, Loy unveiled a watercolor painting, titled Czech Flower Alphabet, so detailed that it took her two years to complete.

[34] [35] [36] A video recorded an interview of Susan Loy in her Prague studio, conducted by art historian, Jana Ticha.