Which major publishing house features a dolphin wrapped around an anchor in its historic logo?

In the world of arts and literature, publishing houses have created some of the most recognizable brand identities through their logos. These symbols not only represent the publisher but often become associated with literary quality and tradition. This trivia question explores your knowledge of these iconic publishing house logos that have graced the spines of countless beloved books.

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Penguin Random House
Doubleday
William Collins (now HarperCollins)
Aldine Press (now part of Houghton Mifflin Harcourt)