Facebook page

I am very new to Facebook but I have an account, which I have used to post concerning a book I have written about Richard Wagner, now available on Amazon.
I understand that I can advertise this on Facebook. I need to " set up a page specifcally for your book rather than just for you. Advertise to friends and family but also join groups around the book’s content and the same type of authors as yourself. Encourage people to share your posts to get the word out. You can also take advantage of Facebook’s advertising where you set the budget per day and whichever post you promote will reach new readers and potential customers every day until your budget runs out. The more you pay, the more clicks, shares and likes you’ll get, and the more people
will be exposed to it. It’s very easy to set up."
I have tried to do this but, for a new user it is beyond me. I would like someone competent in this sort of ting to help me. I don't think it will need much elaborate graphics/videos etc. We are talking about passing information to and fro between people who 'want to read the sort of book I have written'. The market is not huge but solid and dedicated.