Madeline Puckette (Author) Madeline Puckette is a sommelier and visual designer whose infographics have garnered an enthusiastic following from wine beginner to wine expert. Her work has been applied in organizations, including The Court of Master Sommeliers and the Guild of Sommeliers to help wine professionals learn. Justin Hammack (Author) Justin Hammack is a founding patner of Wine Folly and leads conceptual development, interactive tools and marketplace branding.