Creative confidence sounds like some type of a fancy term for something but in reality, it is a reference to the level of confidence that a person has when it comes to their own creativity. For example, if you have a lot of confidence when it comes to your creative abilities, then you have a lot of creative confidence. On the other hand, if you are someone that believes that you have no artistic ability, no musical ability and no ability to think outside the box, then your creative confidence is probably very low. Just as you would do with virtually anything else...
I read this in 2015. I don't remember much about it other than I understood and agreed with the concept that they were conveying. It is a pretty unremarkable book.