Paul Aertker (Ert Kerr) writes the Crime Travelers series, a squeaky-clean international action-adventure series, for kids.

As a traveler and multilingual teacher, Paul has clocked nearly half his life outside the US. When he was a teenager, he slept on the streets of London to watch a royal wedding. He took the CIA exam because he wanted to be a spy for the good guys (and not the "Good Company"). He was an au pair in France, created programs for the International Youth Foundation in Paraguay and Brazil, and with the Peace Corps, he built a children's library in West Africa.

Paul speaks and Skypes with middle schools all over the world. His most recent speeches were in Colorado and Louisiana and Skypes in Oregon, South Carolina, Nigeria, and Vietnam.

The Crime Travelers series has received a TV/Film offers from Hollywood and Canadian production companies.