Cover legend: Artistic interpretation of a retinal section from an embryonic mouse that expresses the transcription factor Foxd1 (blue) in the temporal area. Axons arising in the temporal retina (red) will exit the retina, traverse the developing brain, and finally innervate the anterior part of the superior colliculus, which is represented as a yellow-blue semi-ellipse in the bottom of the image. For more information, see the article by Carreres et al. in this issue (pages 5673–5681).