Jack Gunthridge has a high functioning form of autism known as Asperger's Syndrome. He is very open about his autism diagnosis and doesn't consider it a disability. It is a difference in thinking that people like Jane Austen, Mark Twain, Beethoven, Michelangelo, Isaac Newton, and Albert Einstein are believed to have had.
Jack wants to encourage readers to give his books a try. If you look at his reviews, they are either positive or negative with very little in the middle. Since he has a different way of thinking, his books will be written differently. Some will find this refreshing. Others won't quite know what to do with it because it doesn't fit the standard pattern or expectations of what other authors are producing.