Having read just The Judas Contract and nothing else for me, it's like coming in the last 15 minutes of Return of the Jedi (or any film trilogy) not only having not having seen the rest of that movie or its two previous movies and not understanding what is going who's who and etc.
While George Perez was one certainly of the greatest but his Nightwing costume looks like Dick Greyson should be getting high at an 80s nightclub not battling supervillains.