Please reference this document as follows: From the Global Strategy for Asthma Management and Prevention, Global Initiative for Asthma (GINA) 2014. Available from: http://www.ginasthma.org/. On World Asthma Day, May 6, 2014, the Global Initiative for Asthma (GINA) is launching a major revision of its Global Strategy for Asthma Management and Prevention. This comprehensive and practical resource about one of the most common chronic lung diseases worldwide contains extensive citations from the scientific literature and forms the basis for other GINA documents and programs. The GINA strategy report was first published in 1993. Over the past decade it has been updated annually, based on a twice-yearly review of scientific literature by an international panel of experts on the GINA Science Committee. This is the first major revision of the report in eight years. Click here to download the Online Appendix with additional scientific information supporting the recommendations and concepts detailed in the main report.