They discourage readers from feeling pressured to enjoy "prestige" wines if their palate prefers something sweeter or lighter. The book empowers the reader to trust their own taste buds. It gives you the vocabulary to explain why you like a wine, rather than telling you what you should like.
Authors Ed McCarthy and Mary Ewing-Mulligan, both Masters of Wine (a prestigious title held by few in the world), manage to write without condescension. They approach the subject with the understanding that wine is, at its core, an agricultural product meant to be enjoyed, not worshipped. wine for dummies 7th edition pdf