Riven Homewood's Dewey Decimal Section: 
334 Cooperatives 
Riven Homewood = 8925485353554 = 892+548+535+355+4 = 2334

Class:
300 Social Sciences

Contains:
Books on politics, economics, education and the law. 

What it says about you:
You are good at understanding people and finding the systems that work for them. You like having established reasoning behind your decisions. You consider it very important for your friends to always have your back.