Update: We are currently not accepting unsolicited submissions and do not intend to open up our submissions in the future.
Thank you for your interest in NLP. We wish you the best of luck in your publishing endeavor and career.
One piece of advice (this is our personal opinion), is to not sign up with a vanity press and do not pay to publish. There are many companies who will take your money to publish your book, we personally feel this is not the best option, frankly, steer clear of these companies, learn how to do it yourself, hire people yourself, start your own company and go for it.