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The cover image shows an optical profilometry scan of a biaxially wrinkled surface consisting of two distinct wavelengths orthogonal to one another. Unique, novel wrinkle morphologies as presented by Chelsea S. Davis and Alfred J. Crosby on page 1225 are obtained by the sequential application of orthogonal compressive strains. Taking advantage of the crosslinking kinetics of the elastomeric substrate, control over the ratio of the two wrinkle wavelengths is achieved. These new surface patterns could be utilized on an industrial scale to produce functional surfaces, such as materials with tunable friction and optical properties.