The birthday card Gordon sends to his grandma must travel all the way across the country in just a few days. Here we trace its route through the postal system from the time he buys a stamp and mails it until the time the letter carrier places it in Grandma’s mailbox. Obvious changes (the use of zip codes and the style of public mailboxes, for example) have been made for the U.S. edition . (Ages 4-8)

Find out how police officers investigate a crime that leads to the capture of bicycle thieves. Follow a team of postal workers as they process a birthday card, traveling from a mailbox in New York to a doorstep in Oregon. Facts blend seamlessly into engaging stories in this series, which provides a fun and informative look at a day in the life of two important groups of community workers in "Police Officers" and "Postal Workers". Full color.