Here is the evolution of the entirety of the Starbuck's logo's history, from 15th century engraving, to its initial rendering, to the logo following the merger of Starbucks and Il Giornale, and finally, to its present-day return back to the original.
A) Engraving of a twin-tailed siren (15th century); B) First Starbucks logo (1971 - 1987); C) Il Giornale logo; D) Merging of Starbucks and Il Giornale (1987 - 1992); E) Redesigned Starbucks logo (1992 - today); F) Current Starbucks logo, a revival of the original