Cover legend: Histone deacetylase inhibitors modulate the fate choices of neonatal rat precursor cells. The images show primary cultures of subventricular zone cells stained with DAPI (blue), the "astrocytic" marker GFAP (red), and the "neuronal" marker TuJ1 (green) after treatment with histone deacetylase inhibitors. For details, see the article by Liu et al. in the July 4, 2007 issue (pages 7339–7343).