Best-sellers deserve some respect but should not distort results. Bomb-throwers should be offered books that appeal to terrorists, no censorship or central authority, effective privacy. Negative feedback allows profiles containing books you hate to be applied in reverse, lowering rankings. Communication between Advisor library sites will increase the depth of the knowledge base, so clients with a particular, peculiar or exotic focus can find rare birds of a feather. I believe that reading enriches existence.
Experience weights our evaluation of reading as a rewarding activity.
Better advice gives greater rewards, so more reading and a cumulative human benefit.