Art Masterpieces to Color: 60 Great Paintings from Botticelli to Picasso from Dover Press is a great coloring book to invest in.
Because the coloring book comes with small postcard size reproductions in the back of the book, you can turn this into an art appreciate class. Have your children or teens color these pages of famous paintings exactly like the original artist did. Believe me, they will be scrutinizing these paintings as they color.
Some of the famous works of art in this coloring book are The Peaceable Kingdom (Edward Hicks), Mona Lisa (Leonardo da Vinci), Girl with a Pearl Earring (Jan Vermeer), and Luncheon of the Boating Party (Pierre-Auguste Renoir). There is a wide variety of artwork from different periods and styles. This is a wonderful and vaied taste of art appreciation.