To publish a book on Taobao, you first need to register a Taobao store and select the "Books and Audiovisuals" category. Upload the cover, content, price and other information of the book you want to publish in the store, and choose the appropriate delivery method and payment method.

After that, you need to promote it. You can attract potential readers through store activities, coupons, etc., or promote it on social media. Finally, handle readers' feedback and after-sales problems in a timely manner to improve readers' satisfaction and reputation.