This e-book brings together 13 chapters written by aviation English researchers and practitioners settled in six different countries, representinginstitutions and universities from around the globe. This e-book is an offshoot of the 8th GEIA Seminar, that counts on the collaboration of GEIA and ICAEA researchers, as well as guest speakers. It brings together thirteen chapters focused on aviation language description, teaching, and assessment, written by practitioners from several institutions around the globe. One of our guests and a keynote speaker, Prof. Eric Friginal, added the excellent contribution of his graduate students from Georgia State University, in the USA, and kindly wrote the Preface. Regarding its content, this e-book has been divided into three parts, according to GEIA’s areas of research: language description and analysis; aeornautical English teaching; and assessment practices.The studies collected in this e-book offer us enriching and enlightening discussions that support and promote a better understanding of some key features underlying aviation English language, teaching and assessment practices. We are very pleased to make part of this work. It goes without saying the importance of this e-book for the aviation English field and community. This international publication, besides collecting the studies and work experiences of renowned researches, has also contributed to strengthen the enriching partnership between GEIA members and other researchers. The fact of having been published as an e-book will certainly benefit its circulation and the spreading awareness of aviation English challenges, updates and findings. One of our goals is to spread the news, by making this ESP e-book free for download by as many people and institutions as possible worldwide. Those who place great weight on aeronautical English teaching and assessment practices are aware of the interwoven relation among operational issues, communication and safety. That’s why we believe the discussions and analysis carried out throughout this book are so relevant and should reach international communities and organizations in all parts of the globe. Enjoy your reading! Patrícia Tosqui-Lucks Juliana de Castro Santana