It is the first Monday in September and school is closed. But do you know why? It's Labor Day, of course! Turn the pages of this book to find out: why parks are crowded on Labor Day, why children today go to school and do not work in factories, why Americans rest on a holiday that celebrates working. Each book in the Holiday Histories series describes one of America's holidays or special days. Explore the history of each day and learn the real reason why it is important. Discover what special meaning each day might have for you.