Two thoughts: 1. You might want to tell the user of other books similar to the one she queried for (this could be a reason to call, simply because the user want

Two thoughts: 1. You might want to tell the user of other books similar to the one she queried for (this could be a reason to call, simply because the user wants to see more books of th esame kind in the store). 2. There should be a reverse service too; which lets you browse books at the store depending on what you looked at Amazon from home.