Have you published (or heard of?) through LuLu.com?

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I have three books published on LuLu.com, but they're not traditonally written books. Two of the books are pages from my art journal, and one is a blank art journal that people can use to mirror the work I've presented. I've done fairly well in my little circle of "artists" I know online, but it's rare that someone I don't know will come along and buy one of my books. I'm considering adding more books as I fill more art journals, but I'm still think about this. Have you published through LuLu.com?