Horrid Henry's Guide to Perfect Parents is a non-fiction, humorous guide presented from the perspective of the mischievous and chaotic protagonist, Horrid Henry. Henry, who constantly clashes with his own "perfect" younger brother Peter and his exasperated parents, offers his skewed, self-serving advice on how children can manipulate or train their guardians to become the perfect parents—which, in Henry's view, means parents who spoil him, allow endless mischief, and never enforce rules. The book is filled with Henry's hilarious and terrible suggestions on how to protest chores, demand treats, and generally cause havoc, all written with Francesca Simon's signature irreverent humor that appeals to children who enjoy breaking the rules.