I don't think a fan page works in most cases unless it's created by a fan for a very famous author who doesn't also have a profile page. People have been asking this recently among my Facebook contacts. I also think book pages for separate books are confusing, as you move on to a new book. I will click Like out of courtesy but I'm unlikely to go to book pages unless it's some iconic book.
The advice I was giving on using the internet years ago, and I think it still holds true, is that you need to try to keep everying in one place as much as possible, or in as few places as you can and try to interconnect them.
With Facebook my answer is this. I don't have friends and family on Facebook. I talk to them in other ways. My profile on Facebook is full of writing and publishing contacts, who are also friends, but not my personal friends (unless they also become that). This keeps everything in one place and it is where people look for you and interact.
I have to have an additional page for my publishing company group, and another for an open mic event I help organise in London, so I can send group notices and keep people informed. That's already a nuisance as I have to double post on my wall and in the groups, but people are forgiving.
I advised someone else who asked this question that they may need to consider an extra Facebook profile just for their very personal friends and contacts, make their main profile the one they use as a writer with some personal stuff too, and this will work better than trying to create a purely professional author page.
I'm also happy to be friended on Facebook
https://www.facebook.com/gadeleward and to add people to my publishing group
http://www.facebook.com/groups/136070746434828/?ref=ts&fref=ts where we are having monthly giveaways of Kindle books.