Lois Ehlert (born November 9, 1934) is an author and illustrator of children's books, most having to do with nature. Ehlert won the Caldecott Honor for Color Zoo. She lives in Milwaukee, Wisconsin.Ehlert grew up painting and sculpting. Even in her early years-she always erased her drawings and was never satisfied. Her favorite art technique was and remains to this day to be cutting and pasting. This method is called collage—the process of cutting out pieces of paper, fabric, or objects and gluing them to a backing. Wikipedia