Cover legend: Topographic organization of thalamocortical connectivity in mice. Back-labeled cells in the dorsal lateral geniculate nucleus (red) and in the ventrobasal nucleus (green) of the thalamus were observed after a single DiI crystal was placed into the primary visual cortex and DiA into the primary somatosensory cortex of a postnatal day 10 mouse. This pattern persists in mice in which Pax6 has been knocked out. For more information, see the article by Piñon et al. in this issue (pages 8724–8734).