Cover Picture: Eur. J. Immunol. 9/09

This cover is specifically designed to celebrate the 2nd European Congress of Immunology (www.eci-berlin2009.com), to be held September 13–16, 2009 in Berlin. The cover consists of a collage of images from Iwanami et al. (pp 2606–2616) with Berlin's historic Bradenburg Gate, Brandenburger Tor, in the forefront (image of the Brandenburg Gate r ImageState'. Iwanami et al.'s elegant study shows that, in addition, to defective thymus development, teleosts with mutations in KIAA1440, TRRAP, and SKIV2L2 also exhibit defective development of multiple organs, thus identifying previously unknown roles of these genes in organ development.