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Cover picture: The microvilli of a variety of chemosensory and mechanosensory cells contain novel members of the espin family of actin cytoskeletal regulatory proteins. Localization of espin (green) in mouse taste buds, highlighting the staining of the taste-cell microvilli that are congregated in the taste pore, is shown. A subset of the espin-positive taste cells (orange) is labeled with antibody to α-gustducin. For details, see the article by Sekerková et al. in this issue (pages 5445-5456).