This is the Volume 1 of the Encyclopedia 727, that will cover the full story of the Boeing 727, one of the most important jetliners of all time. Volume 1 has 360 pages that covers the backstage of Boeing's risky bet to develop the 727 (Chapter 1), an explanation of the advanced technical features of the trijet (Chapter 2), the successful marketing strategy to market the airplane (Chapter 3), the 727 and its main operators in the world (Chapter 4) and its operation in Brazil (Chapter 5). It has more than 150 pictures, almost 500 photorealistic and exclusive profiles, along with 12 maps, 35 infographics and many more. The books will be available in English & Portuguese. Spanish will be added in 2022.