Two companion stories by Gary Paulsen, Liar, Liar: The Theory, Practice and Destructive Properties of Deception and Flat Broke: The Theory, Practice and Destructive Properties of Greed, tell the story of Kevin who tell a pile of lies in order to win the heart of a girl. He lies to everyone: his family, his best friends, his acquaintances. He couldn't lie to a little boy though and that's when the pile of lies came tumbling down. If you like Liar Liar, then you must read Flat Broke.
Two very short novels for readers in 6th-8th grade about the questionable act of lying and making amends in order to win back everyone's trusts and friendships.