I have read both and personally found that the art of seduction was way more beneficial in giving me insight into my personal relationship with not only women but people in general. Specifically the chapter, The anit-seducer. That chapter alone provided greater insight then all of 48 laws of power, and really helped me to define and correct one of my major weaknesses. I am the brute and upon reading that chapter, i had that epiphany moment where i could clearly see how i had fucked up a number of relationships in the past and how i should correct/watch out for that behavior in future. Anyway, Love Robert Greene and just wanted to give everyone a heads up that if you haven't check out the book yet, at least take 20 mins and read that one chapter.