The Macmillan English Dictionary (MED) was published at the beginning of 2002, and quickly gained a reputation for quallity, innovation, and user-friendliness. The development of the MED was guided by two key principles: firstly, a belief that we can make dictionaries better by applying what we learn from linguistic theory in practical ways, and secondly, a commitment to ´learning from learnes´ in other words, finding out what students and teachers really need their dictioanries for, and then tailoring the dictionary to meet those needs. This proved a successful formula, and the MED has won several prestigious prizes, including, the ESU English Language Book Award (2002) and the British Council?s ELT Innovation Award (2004).