Of Your Books, Which Is Your Favorite?

Which book that you’ve written is your favorite?
It’s a question I get asked a lot. 
Answering it isn’t as easy as you might think. For an author, picking a favorite book is a little like asking a father if he loves one of his children more than the others. That’s an exaggeration, of course, but when you spend several years of your life consumed in writing a book, the finished manuscript becomes much more to its creator than ink, paper, or in today’s world, electronic text.