Parker has succeeded in writing crime thrillers that are entertaining and fast reads and yet give you issues to think about. "Double Deuce" is no exception, and this time, the issues are racial relations and gang psychology.
This novel has a more intense than usual opening for Spenser, because we get to sorta know the young girl and her baby daughter just before they're killed, and to have a feeling of the life they were leading.
From there, as other reviews have pointed out, Hawk is the principal character this time, though Spenser does provide him with valuable information just before the climax. And hey, Hawk is involved in a relationship too, as if trying to clear a housing project in the ghetto of a gang isn't enough.
The romantic side plot this time takes up the question as to whether Spenser & Susan should be living together or not.
Especially good here is the portrayal of the attitude of the project residents and the activist preacher helping them towards Spencer. Also good is the portrayal of the grudging mutual respect between Hawk and the gang leader. On top of that, we're given an idea of how Hawk, in his own way, rose above his childhood beginnings.