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A coloring book artist working with a trade publisher typically earns 5–10% of net receipts. Self-publishing through Amazon KDP returns 60% of list price minus printing cost, which on a heavy interior can leave under a euro a copy. Publishing with a small independent press varies, at Tinge World it’s 80% of the margin after unit cost, which on an €18.45 book works out to €7.87. Those numbers look wildly different. They matter far less than the question nobody asks first, and

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