True Crime? Narratives? Travel? Memoirs . . .?
The first thing that comes to my mind is "How To" books.
Nonfiction exposes (through words) the TRUE feeling of life's REAL experiences. Nonfiction tears falling from a reader's eyes is only clear saltless water when written by a fiction writer.
Non-fiction should make history come alive again. A good non-fiction writer should be able to make the reader feel the same as the people who actually lived the event felt.
All of the above and more. Not to sound flip, but I think of nonfiction as all that is not fiction or poetry. (I'd include plays as a form of fiction.)
I have to say that Non-Fiction contains some of the most profound works of our time. Especially the sections I consider my favorites: philosophy, esoteric science, science, metaphysics, self-improvement, self-empowerment. It provides an expression of where we are as a human race and what we are moving towards. When conscious human beings not only experience and react to their lives, but learn from them, interpret them and pass them on in written form it provides knowledge and empathy for other human beings. It is the continuous works of non-fiction in these areas that helps us recognize the brotherhood of man.
I have nothing against fiction... I just haven't been drawn to read it in the past 20 years since I became interested in "soul work".(.the exception being a couple Dan Brown novels).
Though some fiction and fantasy helps to expand the consciousness and imagination, a lot of fiction plays on base weaknesses of being attracted to the horrific or the desire to escape from ones current life. Both of these are fine....in moderation....like most of life. My best friend likes to come back from her spiritual retreats in India and read the National Enquirer(I am Not relating this to high quality fiction!). The brain needs mental exercise of ALL kinds.
I think Non-Fiction is here to stay and as we become more conscious human beings...the market will expand. We will look towards the experiences and research of those who have tread the path of higher consciousness before us. AND we will demand new textbooks for the new universal science. We will also want to understand, more indepth our spiritual anatomy and our relationship with the animal, vegetable and mineral kingdoms.....I predict a very bright future for non-fiction as we engage fully in the adventure of being human rather than running away from it.