Im planning to publish my book through
createspace.com im about 75 pages into my 100 page book, should have it done by the end of summer and hope to have it published by this fall. Im not an author or a writer, just writing a how to guide for one of my hobbies.
You have to do all of the work yourself, ie writing, editing, uploading, creating a cover, selecting page sizes, paper, color vs black and white, etc... but it doesn't cost you anything so if you only sell one copy to yourself its no loss other than your time. They are a print on demand company so will print just one book or can print tens of thousands. They offer them for sale on their website or through amazon, you can ad B&N and a handful of other places but that extra service will cost you money.
Obviously you are responsible for advertising and marketing your book. But if you're only looking to sell a couple hundred copies you can easily do that via facebook and some posts on social media.
For reference my 100 page, 6"x9" black and white book with color cover, if sold for $12 on amazon would net me $4 of profit. I can also buy the books directly from them as the author for $2.50 a piece. Goal is to sell 100 copies!