"Zero Is Not a Number" is a middle-grade mathematical fantasy that follows Zero, who struggles with feeling worthless in Numerville where every number has a clear purpose. During the Mathlympics competition, Zero discovers his unique abilities - the power to reset, balance, and create potential. Through challenges involving fractions, negatives, infinity, and paradoxes, Zero learns that being "nothing" is actually fundamental to mathematics. With help from Decimal Point and unlikely allies, Zero proves his worth and shows that zero isn't just an absence of value, but rather the foundation that makes all other numbers possible.

The story weaves mathematical concepts into an engaging narrative about self-discovery, belonging, and finding value in one's unique qualities. Through Zero's journey from self-doubt to self-acceptance, readers learn both mathematical principles and emotional lessons about embracing what makes them different.