What is the author's style in The Mark of the Assassin: A Novel by Daniel Silva?

Credibility for characters in any novel depends upon the author's ability to produce descriptions, actions, thoughts, and conversations which maintain the portrait of those characters and promote them as believable in the eyes of the reader. In this respect, Silva obviously did his homework. Each individual, whether a political figure, a zealot, a cold, calculating egotist, or a professional, must use language appropriate for that station and personality. Because many characters are involved in intelligence, there is a great deal of terminology appropriate for that profession.