Amazon's Books Publishing refers to the various publishing options Amazon offers, including Kindle Direct Publishing (KDP) for self-publishing eBooks and paperbacks, Amazon Publishing (APub) for traditional publishing, and Audible for audiobooks. KDP allows authors to publish with no upfront costs, retain rights, and earn royalties of up to 70%. APub, Amazon’s in-house publishing arm, selects books for traditional publishing with editorial and marketing support. With global distribution and promotional tools, amazon's books Publishing provides an accessible platform for authors to reach a worldwide audience.