“La Guía Esencial de Walt Disney World” – http://amzn.to/T3sB54 – is the first unofficial guidebook in Spanish dedicated to the Walt Disney World Resort in Florida, and it has quickly escalated positions in the travel sections of both the American and the Spanish Amazon stores shortly after its publication. Oscar has a day job, but he spends most of his free time helping Spanish-speaking families plan a perfect Disney theme park vacation, sprinkling some pixie dust (in their own language)…