It is now more than 25 years ago that the first edition of Airline Marketing and Management appeared. During that long time, I have been fortunate indeed to earn my living from working in the aviation industry, and to make a large number of good friends. Along the way, the industry’s only constant characteristic has been a continuing – and accelerating – pace of change. As I sit down to write the introduction to another edition, there is no sign of that situation changing. Issues such as moves towards a more consolidated airline sector and the progressive hybridisation of Low Cost Carrier business models have all demanded attention during the rewriting process and, I hope, have been properly covered in the pages that follow. As always, I welcome comments, suggestions and questions – please feel free to email me at the address given below.