I have often used self-publishing on sites like Blurb.com to finalize my children’s books. Children’s books are very specialized. Writing a manuscript is a different experience from writing and designing the actual book. A children’s book has illustrations (I do my own), a particular format, definite page breaks, etc. Using a self-publishing company with POD capabilities like Blurb, allows me to see how all these factors work together. I can see how the illustrations work with the text, whether or not I have 32 pages for a picture book, does the story follow logically, is the font size correct for the page size, how does the book look visually as well as how it reads, and do the illustrations print correctly in terms of color and saturation. Often, I will order a copy and see how it looks, and then I know what corrections are needed. My current publisher, Oak Tree Press, uses my illustrations and book designs. Even if I were to use a publisher that would hire an illustrator and editor, I think I would still go through this process. Basically, I want to see how my book might look in print.