Lessac grew up in Cliffside Park, New Jersey, a small town outside New York City.
[citation needed] Lessac moved to the Caribbean island of Montserrat in 1979,[1] where she began her career as a painter.
[citation needed] In 1983 Lessac left Montserrat[1] and moved to London, where she began to exhibit regularly and published her first book, My Little Island (1984), which was a compilation of her paintings of Montserrat[citation needed] and her "love letter" to the island.
[1] After My Little Island, Lessac went on to publish a number of children's books, initially in the U.K, the U.S and later in the state of Western Australia, where she relocated with her husband, author and musician Mark Greenwood.
In 2002 Lessac won the Western Australian Premier's Book Awards for The Legend of Moondyne Joe.