Preface: Geometry and mechanics of layered structures and materials Giles Hunt, Richard Butler, and Chris Budd 1723-1729 Research article: Stripe patterns and a projection-valued formulation of the eikonal equation Mark A. Peletier andMarco Veneroni 1730-1739 Research article: Multi-layered folding with voids T. J. Dodwell, G. W. Hunt, M. A. Peletier, and C. J. Budd 1740-1758 Research article: C..