Any book published in New York that was created wholly or partially using generative AI must carry a conspicuous on-cover disclosure stating that AI was used in its creation. This applies to all printed and digital books regardless of audience, encompassing text, pictures, audio, puzzles, games, and combinations thereof. The definition of 'generative artificial intelligence' is extremely broad — it extends well beyond large language models and image generators to encompass virtually any machine learning or algorithmic system that performs tasks, makes predictions, or approximates cognitive functions. Publishers should note the bill does not specify any penalties for noncompliance, nor does it designate an enforcement authority or create a private right of action.