Since Nathaniel Hawthorne's pioneering A Wonder Book for Boys and Girls (1851) and Tanglewood Tales (1853), retelling Greek and Roman myths for children has been a widespread and influential means of popularizing classical material. While Hawthorne unabashedly appropriated the myths as entertainment for young readers, works by his contemporary counterparts (such as the "Myth-O-Mania" series,Greece! Rome! Monsters! , and the Percy Jackson series) display a more anxious and conflicted approach to the same material, caught between the aims of educating their readers about antiquity and appealing to their readers' presumed hostility to school and learning.