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By comparison, authors published by traditional publishers had a median income range of $5,000 to $9,999 and "hybrid authors" (those who both self-publish and publish with established publishers) had a median income range of $15,000 to $19,999.

1)Blurb. 2)Book Baby. 3)Kindle Direct Publishing (KDP). 4)Xlibris. 5)Outskirts. 6)Kobo. 7)Virtual Bookworm. 8)CreateSpace. Another Amazon-owned company, CreateSpace is widely favored by first-time, budget-conscious authors.

Self-publishing is the publication of any book, album or other media by its author without the involvement of an established publisher.

When an author publishes his or her book without involving an established publisher, the act is called self-publishing. It is an easy way to publish your own book without less hassle.

According to the Write Life, the average amount a writer spends on self-publishing a book falls between $200 and $300. While according to Book Promotion, more experienced writers spend several thousand dollars on self-publishing services.

Blurb, Lulu, AuthorHouse, CafePress, CreateSpace, Outskirts, Kobo, Kindle Direct Publishing, and Xlibris are some of the popular self-publishing companies.