About Robert Walker Books by Robert Walker Labor Day by (author) Robert Walker Happy Birthday! by (author) Robert Walker What Is the Theory of Evolution? by (author) Robert Walker Porsche by (author) Robert Walker Pushes & Pulls: Why do people migrate? by (author) Robert Walker Veterans Day by (author) Robert Walker Eid al-Adha by (author) Robert Walker Live it: Initiative by (author) Robert Walker Live it: Integrity by (author) Robert Walker Live it: Optimism by (author) Robert Walker Close-Up Canada by (author) J. Bradley Cruxton, Doug Wilson, Robert Walker, Daniel Francis & Brian Harrison World Civilizations A Comparative Study by (author) Robert Walker