APub.com is a well kept secret to a lot of people, including writers and publishers, because it is supposedly the top publishing brand of Amazon.com. While the KDP Direct is open to the general public - to publish their ebooks - APub is directly the opposite. In order for any writer to become a member of APub, he or she must first be a bestselling author, whether independently or traditionally. And the advantage of becoming an APub author is tremendous. Why? Because Amazon.com will promote your book for you, to their millions of subscribers. 

Listed below are the 14 book publishing imprints currently operating under APub:

• AmazonEncore (Rediscovered Works)
• AmazonCrossing (Translated Works)
• Thomas & Mercer (Mystery, Thrillers, and Suspense)
• Montlake Romance (Romance)
• 47North (Science Fiction, Fantasy, and Horror)
• Little A (Literary Fiction)
• Skyscape (Teen and Young Adult)
• Two Lions (Children's Picture Books, Chapter Books, and Novels)
• Jet City Comics (Comics and Graphic Novels)
• Lake Union Publishing (Contemporary and Historical Fiction, Memoir and Popular Nonfiction)
• StoryFront (Short Fiction)
• Grand Harbor Press (Personal Growth and Self-Help)
• Waterfall Press (Christian Nonfiction and Fiction)
• Amazon Publishing (Nonfiction, Memoirs, and General Fiction)

The whole Apub.com is still under development, and Amazon is currently looking for writers fill its spots; meaning that they are looking for the next potential bestsellers to sign.

Below is a sample proposal that Amazon has been sending to potential writers who may qualify for this new apub program, be mindful that this is not KDP related at all.

"We want you to be one of the first authors to hear about a new program that will help you kick-start your book and potentially earn a new publishing contract with Amazon - in 45 days or less. We'll be officially announcing this program soon. In the meantime we wanted to share how it will work.

Authors will be asked to submit their complete, never-before-published book and cover.

After a few days, we will post the first pages of each book on a new website for readers to preview and nominate their favorites.

Books with the most nominations will be reviewed by our team for potential publication.

Should you be selected for publication you will receive benefits that include:

Guaranteed advance & competitive royalties: You will receive a guaranteed $1,500 advance and 50% royalties on net eBook revenue.
Focused formats: We acquire worldwide publication rights for eBook and audio formats in all languages. You retain all other rights, including print.
5-year renewable terms, $5,000 in royalties: If your book doesn’t earn $5,000 in royalties during your initial 5-year contract term, and any 5-year renewal term after that, you can choose to stop publishing with us.
Easy reversions: After two years, your rights in any format or language that remains unpublished, or all rights for any book that earns less than $500 in total royalties in the preceding 12-month period, can be reverted upon request – no questions asked.
Early downloads & reviews: One week prior to release date, everyone who nominated your book will receive a free, early copy to help build momentum and customer reviews."

To receive a copy of this notification letter from amazon.com and apply for the apub program go here, http://www.amazon.com/gp/gss/detail/29134490/ref=pe_1148920_123694410_pe_button/1. Click on the subscribe button to sign up.