The top 10 neighbors for Penguin Press compress into a narrow band — scores running from 0.97 down to 0.96 — with no single standout pulling away from the pack. That flat distribution is itself the finding: this audience doesn't have a dominant gravitational center; it overlaps broadly and evenly across a specific literary ecosystem.
Seven of the ten neighbors are fellow Book Publishers: Farrar, Straus & Giroux (0.97), Alfred A. Knopf (0.97), Random House (0.97), Riverhead Books (0.97), Vintage/Anchor Books (0.96), Penguin Random House (0.96), and Viking (0.96). The remaining three break from that pattern in a consistent direction: The Millions (0.97), a literary blog, Guardian Books (0.96), a news publisher, and Scribner (0.96), another Book Publisher. The Millions, at 0.97, is the highest-scoring non-publisher in the set — a notable crossover given that it is a blog, not a press.
The composition is almost entirely same-kind: eight of ten neighbors share the Book Publishers subcategory, with the two exceptions being literary-adjacent media rather than anything structurally distant. No authors, journalists, or general-interest media appear in the top 10.
This shape describes an audience that moves tightly within the literary publishing world, with minimal diffusion into adjacent categories at the top of the similarity range.