These free, printable Valentine coloring pages provide hours of online and at-home fun for kids during the holiday season. Valentine's Day is named in honor of Saint Valentine. Today it is marked by the exchange of valentine cards, flowers, candy and other gifts. Modern Valentine symbols include hearts, doves, and the figure of the winged Cupid. In some North American elementary schools, children decorate classrooms, exchange cards, and eat sweets. The greeting cards of these students often mention what they appreciate about each other.