Which major publishing house redesigned its iconic logo in 2016, replacing its dolphin symbol with a simplified text-based design after nearly a century of brand recognition?

Publishing houses have developed distinctive visual identities that book lovers often recognize instantly. These logos appear on book spines and covers worldwide, becoming visual shorthand for certain literary traditions or quality expectations. Test your knowledge of the visual branding behind some of literature's most influential publishers in this challenging trivia question about publishing house logo design evolution.

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Penguin Random House
Houghton Mifflin Harcourt
Faber & Faber
Doubleday