What is the author's style in The Forever War by Joe Haldeman?

Since this novel is a first-person narrative, the language is personal and informal. Both the dialogue and the exposition are wryly sarcastic at times, which adds to the intimate flavor of the story. Despite the fact that the writing is over 30 years old, it is quite contemporary and easy to understand for the modern reader. The language flows easily, and in contrast with a more formal writing style, it is not necessary to concentrate on the reading, or read passages more than once, because it is written the way many people think and speak. The only exception to this is in the scientific and technical descriptions of futuristic technology that are a bit more difficult to absorb than the story itself.