Throughout history, hot-air balloons have been used for a number of practical and recreational purposes. With their beautiful and often brightly colored designs, hot-air balloons are objects of high interest and curiosity, especially among young readers who are already interested in other kinds of aircraft. Readers of this engaging book follow along with Piggles, a charming pig, to learn all about hot-air balloons. Vibrant illustrations and carefully organized diagrams provide deeper insight to each lesson's already accessible text.