Dishonest Ninja
Mary Nhin's Ninja Life Hacks series has sold over three million copies, and Dishonest Ninja shows why: it takes a character trait — honesty — makes the consequence of ignoring it physically felt for a ninja character, and lets children draw the conclusion themselves. The bright cartoon-ninja illustrations are engaging, and the series is genuinely widely used by school counselors and teachers as a social-emotional learning tool, which is a meaningful signal of classroom effectiveness. The caveat is honest: the story is formulaic and very simple, which is fine for its age range but may feel repetitive to adults reading multiple titles in the series back to back. As a standalone conversation-starter about truth-telling for young children, it does its job cleanly.