Communication in aviation is a challenge for pilots, air traffic controllers, aviation personnel and, consequently, for professionals who are in charge of teaching and assessing the language used in the aeronautical context. The growing demand in the market along with constant commitment with safer skies have posed the need for more and more studies that try to contribute to this issue, especially those which attempt to describe and explain the use of English in aviation. The book brings introductory information about teaching Aviation English regarding general guidelines for teachers in addition to data from academic research conducted in the area. Specific studies based on the analysis of aeronautical accidents and incidents, interviews with pilots and ATCOs and corpus research show that the use of the English language in aviation should be further addressed.