Previously a person could approach a publisher, and the head of the place would actually read something and take a chance on it if the publisher liked the material. The book is finished, but in manuscript form presently. ASAP so it will be published soon. I have a lot of authors who have reviewed the book who were very pleased with it. Everyone must start somewhere.
Some publishers read manuscripts with un-agented writers.
Others say that you must have an agent. In many cases it is easier with an agent s contacts. Sharon, the subject of your book is much needed. I believe non-writers can learn from this book, fans can get to know their favorite authors more, and readers can enjoy the material in general. I have done better on my own.