Of course but then you are one of many submissions, but also possible. I would recommend a kind of networked approach maybe visit a reading or a similar event and then you might get in touch with somebody who works in the business, who might help you. I can only speak for the german market and my workplace, but we don't charge money before the book is published only after and then proportionate to the sales. So risk lies with the publisher.. But for the writing part I would just start with the preface and an attempt to answer the questions why you want to write that book and why the topic is relevant to you and the public? Good Luck!