Each individual book within this genre tends to have a similar overall message and methodology - "sin bad, purity good, here's how to stay holy, etc." There's usually a unique slant to them as well, depending on whatever point the author feels the need to make. In the case of "The Silent War," the focus is on the negative consequences of sex addiction and involvement with pornography. Much of the book documents the casualties on all fronts of the "Silent War" - the men who risk everything to fulfill their sex addiction, the family members they devastate, and the women who put their physical, emotional, and spiritual health on the line by their personal involvement in the porn industry. This is particularly effective because it shows the human cost of sexual addiction, and destroys the myth that pornography is a "victimless" crime. It's only in the last couple of chapters that a solution for those in bondage to this sin is offered, and it is along the usual Christian lines of accountability, prayer, fleeing temptation, Scripture meditation/memorization, and so forth.
I liked the book - it's an easy read, the main author is very transparent about his own struggles with pornography, and the message is an important one. However, any Christian who is dealing with sexual addiction and pornography should not rely on this book alone (although it can be said that any single book on this topic is somehow inadequate). While sound, the solutions listed above will only "work" for the reader if they have a growing love relationship with Christ, and a PRIMARY desire to know Him and obey Him. If one simply concentrates on eliminating the sin (the negative) without discovering an acceptable alternative (the positive), then I think eventually they will fall again. Personal holiness is a byproduct of our relationship with God - it's not an end in itself. If that is kept in mind, then "The Silent War" is worth reading as an aid to strengthening one's existing walk with God.