Hacker News Reader

You mean something like this: http://www.hackernewsers.com/books.html ? ;-)

I was just waiting for a link like that, I was sure someone had already done this

Edit: I do still think an up/down vote system to build a Top Hacker News suggested books, could be really cool to see

I agree. A first step is to search HN for "book review"[1] and see what the review says and how many upvote it has. I know it's not exactly what you ask for but it's a start.

[1] https://encrypted.google.com/search?q=site%3Anews.ycombinato...

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