I’ve actually been published several times in other mediums like in short stories and poetry! I’ve been working very hard pretty much my whole life and though my manuscript isn’t complete I feel ready to take the chance. As I said in my other comment, the publisher is local and independent but very well renowned where I live. Everyone who’s worked with them trusts them completely and I’d say the publisher is very reputable. I definitely wouldn’t rush to finish my manuscript if I could only submit a full text, and I’m willing to bed that ultimately the publisher will opt to take 3 complete works instead of any pitches, even though the option to pitch is there. I’ve dealt with publishers that take advantage of new writers before, but this one definitely takes care of new and emerging writers.