As you would expect there evaluation of the book, isn't just if you liked the book or not, but if the book can be said to support the conclusion or not.

However, just because someone rights a very good book in support or opposition to a cause, doesn't mean that that cause is wrong.

The purpose of this algorithm is to, in the global war of ideas, to identify how much of the water is being carried by a certain book, vs. a movie, etc.

So another aspect of this algorithm would indicate how many books are sold.

With this information, someone could identify the Book as making the largest case for a cause, then they could their attention on discrediting the book.

On the one hand you might assume that arguments from a book should carry a lot of weight because, the author would usually spend a lot of time with a subject, investigate it, and present his findings. However their are many authors on both sides of an issue who right books. Their is no way to come to the truth of an issue, without taking all the arguments made in books, and smashing them together, organizing them, categorizing them, removing duplication, finding the person who said things best, demoting bad logic, faulty assumptions, contradictions, evaluating each assertion on their own merits.

Arguments from the book, would have to be quoted and put into the reasons to agree and disagree category, in order for real progress to be made, because this is the only way that we can merge the data from one book, together with data from other books.

But this does not change the fact that many people take books as their reasons to believe something. For instance many people believe the communist manifesto proves the advantages of communism. It would be interesting to see the list of the top books that support and appose communism, and further than that which books support and oppose specific aspects, and conclusions drawn about communism and any other topic.

We have to reflect the way people come to conclusions, before we can change the way people come to conclusions.