Kosinski studied architecture at Manchester University, UK. In 1991, he began his career as a full-time artist in Jerusalem, and travelled to Israel, Palestine, Lebanon, Syria, Jordan, Sinai and Egypt. In Jerusalem, Kosinski published a book of 200 of his paintings. He later studied landscape in Santa Fe and the Blue Ridge Mountains. Kosinsi's work is inspired by the stages of his life and importance of color in each of those stages. He has been featured internationally in England, the US, and Jerusalem.