Joan Waites (What's the Difference? and What's New at the Zoo?) has been a freelance illustrator for the past 18 years. She received a Bachelor of Science degree from DeSales University in 1982. Employment followed for 15 years as a neo-natal intensive care nurse in Philadelphia and Washington DC, while she simultaneously returned to college to study illustration and launch her freelance career. In addition to What's the Difference? and What's New at the Zoo?, Joan has illustrated nearly 40 books for the educational and trade marketplace. She is also an adjunt faculty member of The Corcoran Museum School of Art and Design in Washington, DC, where she teaches various children's classes for the college's -Aspiring Artists- program. Visit Joan's website: http: //www.joanwaites.com/