If you wish to attend the twelfth Mathematics of Networks meeting you need to email me by 9th September (the coming Friday) to register. This meeting has a theme of "Social Networks" with six of the eight presentations on this theme. It's an ideal meeting to hear about research into networks in a variety of disciplines. Our aim is to get researchers from all areas which involve networks to discuss tools and techniques which can be used in different areas. http://www.monmeetings.org/meeting12/ -- Richard G. Clegg, Dept of Elec. Eng., University College London http://www.richardclegg.org/