Penny has won numerous awards: the Macavity Award for Best First Mystery and the Agatha and Anthony Awards for Best Juvenile Mystery.
Penny writes the Party Planning Mystery Series which started in 2010. It features San Francisco teacher Presley Parker. She was recently laid off and opens her own event coordination business, Killer Parties.
She also wrote the Connor Westphal Mystery Series which appears to have ended in 2008. Penny Warner has her Master's in Special Education and writes the Code Busters Club Mystery series for children ages 9-12 years old.