Most retailers require some form of validation to be sure converted ebooks will meet their standards and display properly on their ereaders.
Lee Foster’s Ebook Publishing Revolution, Part 2 in which the author discusses ebook formatting and pricing.
My Incredible Journey from Print to Indie e-Book Author by Joan Reeves in which a midlist author who can’t get published becomes a bestselling e-book author
How To Publish Your Ebook by Joanna Penn showcases a training program that takes you through publishing to the Kindle, the Nook and other e-readers
Getting Started with Pubit!—A Mini-Tutorial that covers the entry screens and information needed for Barnes & Noble’s ebook publishing portal