What is the author's style in The Mark: The Beast Rules the World by Tim LaHaye?

The book is written in third person from an omniscient point of view. It's the only method that would work for this book because the characters are spread out across the globe. There are occasional looks into the thoughts of individual characters. For example, David's thoughts of panic are revealed as he stands waiting in line to greet Carpathia after his resurrection. That addition to the third person point of view is important, even though it is greatly limited. The story is expressed in both the conversations of the various characters and through exposition, giving the reader a well-rounded opinion of what's going on. The omniscient point of view is limited only in that those non-believers are not included except through the view of the believers. For examples, the only glimpse into the life of Nicolae Carpathia is when he is with David or when David is listening in on his conversations. That is also necessary since the book is aimed at the lives and actions of the believers. If Nicolae's innermost thoughts were revealed to the reader, the mystery would be eliminated.