Everyday we experience numerous services all around us, but we often have no idea of their complexity. We've probably been to airports on more than one occasion and even flown in planes, but many elements that we never see are essential to the functioning of this complex world. This book will help us to discover them! In addition to considering the public areas,we will also learn what happens in all the others - the largest and most technical -where only people who work at the airport can enter under strict control. There's even an Augmented Reality app to help readers discover how an airport works.