As a published author I would recommend checking out the websites of known quilt related publishers. There is a lot that goes into the production of a book (copyright infringements, techinal writing, photographs, layout, actual printing, marketing) that needs to be considered. It's a really big committment and one that needs to be thought about carefully. I've been very pleased with the decision I made to go with a nationally known publisher who did the research first to be sure it was an original idea that I had and then did all the production work and gave me lots of support throughout.
Jan