Lisi Harrison writes children's and young adult series about friendship, status and social competition, often in wealthy school environments. The Clique begins with Massie Block and a tightly controlled group of popular girls whose social hierarchy is disrupted when Claire Lyons moves into Massie's family guesthouse. Later books follow fashion, school rivalries and shifting alliances, while Monster High reworks similar concerns through teenage children of famous monsters trying to fit into ordinary school life. Harrison's books are quick, glossy and dialogue-led, with clothes, reputation and group dynamics driving the plot. They fit middle-grade and YA school drama, friendship series and social-comedy fiction. The Clique is the defining starting point for Harrison's school-status fiction, while Monster High shifts the same social concerns into supernatural comedy. The Clique is the defining entry point for Harrison's realistic school drama, while Monster High transfers status anxiety and belonging into a supernatural setting; both are aimed at readers interested in friendship groups, fashion and shifting popularity. Read more Less