The top 10 neighbors for Little, Brown and Co form a tight, undifferentiated cluster — scores run from 0.97 down to 0.95 with no single dominant pull and no sharp drop-off between positions. That compression is the structural finding: this is a publisher whose audience shape is almost entirely defined by its own kind.
Eight of the ten neighbors are fellow Book Publishers: Alfred A. Knopf (0.96), Scribner (0.96), Penguin Random House (0.96), Random House (0.95), Algonquin Books (0.95), Penguin Books (0.95), HarperCollins (0.95), and Penguin Press (0.95). The two exceptions are trade-facing media: Publishers Weekly (0.97), a Magazine, sits at the very top of the list, and Guardian Books (0.95), a News Publisher, closes it out. Both are outlets whose readership overlaps heavily with the publishing industry itself — the same audience that follows imprints also follows the trade press that covers them.
The shape flag is flat, and the data bears that out: no neighbor stands meaningfully apart from the others, and the spread across all ten is less than 0.025. The absence of authors, booksellers, or general literary media in the top 10 reinforces the picture — this is an audience concentrated within the professional and enthusiast core of the book world, not one that fans out into adjacent cultural territory.