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Cover picture: Glass patterns are textures made by pairing dots in a random array. Different pairing rules yield different percepts of global form, all based on local correlations between dot pairs. The three circular fields show translational, concentric, and radial Glass patterns. The magnified views on the right show that local regions found in each Glass pattern contain paired elements of a particular orientation. The transparent overlays show how these random dot patterns would "fit" into the receptive field of an idealized V1 neuron that prefers oblique orientations. For details, see the article by Smith et al. in this issue (pages 8334-8345).