Which major publishing house features a dolphin wrapped around an anchor in its historic logo, a design that dates back to the 15th century?

In the world of arts and literature, publishing houses have developed distinctive logos that become symbols of literary excellence. These emblems often appear on book spines and covers, becoming visual shorthand for readers seeking quality literature. This trivia question explores your knowledge of these iconic publisher identities that have shaped the visual landscape of literature.

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Penguin Random House
Doubleday
Aldine Press/Doubleday
HarperCollins