Some of you might be wondering what has happened to the World Airlines guide that we have been publishing in three parts each year since the 1990s. Well, this year we've decided to do something a bit different. The 170-page guide, which has full details on around 1,500 airlines, will be available as a free supplement with next week's issue of Flight International (20-26 April). So, if you're not a subscriber, make sure you reserve or pick up your copy from your newsagent as soon as possible. After that, you can get copies, but at £25 or $50 a time (still great value, we like to think, but we wouldn't want to do you out of one of the best bargains of the year). World Airlines, published in association with DVB, is an invaluable guide to the world's airline industry and if you get your hands on a copy we suspect it will end up well-thumbed by next year.