The producer/rapper collaboration is often so much more rewarding than a super group (*cough* Divine Fits *cough*), especially when the two parties seem so well matched. "Bookfiend," the recent collaboration between DOOM and Clams Casino is an excellent example of this. Clams Casino's hazy production and DOOM's easy muttering flow sync up nicely. Of course, since this is DOOM, little is known about the track's circumstances or if the pair worked on any more songs together. Let's hope they did if the results are like this.