This twelve-book series from Clara House, a division of The Oliver Press, offers young readers a ticket for a private tour of some of America's most exciting places-where people and machines work together to produce the items and services we use every day. Detailed, full-color photographs and clear, engaging text guide children step by step through fascinating processes. From how one company cooks up delicious candy bars to how the post office delivers a letter to its destination, How It Happens books give readers a behind-the-scenes look at the creativity and labor that shape the world around them.