When airplanes were first introduced as a means of transportation, they became runways in the sky, with celebrities and members of the upper class dressing glamorously for travel. “A fashion pageant parades from the airport concourse through the air bridge and on to the aircraft; for passengers and crew alike, glamour and flying have always been synonymous,” Keith Lovegrove writes in a new book, Airline: Style at 30,000 Feet. "Hollywood scriptwriters and blockbuster bestselling authors frequently use the skies as an arena for staging glamorous histrionics. The airline industry is a catwalk for the image-makers and the image-takers." Today, while flying has become more accessible to the general public, fashion still remains an integral part of the experience. With designers collaborating with airlines—such as Vivienne Westood creating uniforms for Virgin Atlantic, or the iconic Pierre Balmain ensemble for Singapore Airlines—flight attendants' style has remained an integral part of an airline's image. Airline: Style at 30,000 Feet, released this week, looks at the evolution of airline style, including "uniforms that began as military and modest in style [that] progressed to sex-sells hot pants." A look at the evolution of airline style, from stewardesses to passengers, through the years.