The product is a paperback book titled "Portrait Painting" by artist Jan De Ruth, published in 1964 by Pitman Publishing in the United States. The book is in English and features illustrations related to drawing. Jan De Ruth provides nonfiction narrative on portrait painting techniques, making it a valuable resource for those interested in learning more about the art form.

JAN DE RUTH “PORTRAIT PAINTING” PITMAN 48 GOOD (A-179)