Cover legend: Confocal micrograph showing an immunolabeled vertical section of macaque monkey retina. Photoreceptor and bipolar cell axon terminals are labeled with vesicular glutamate transporter 1 (blue) and subsets of bipolar cells are labeled with calcium-binding protein 5 (red). The hyperpolarization-activated cyclic nucleotide gated channel 1 (green) is concentrated in photoreceptors and in the axon terminals of bipolar cells that provide input to magnocellular visual pathways. For more information, see Puthussery et al. (16045–16059).