HeadFirst appears because a commenter pointed out that it was a good book that you wouldn't think of, and this comment got several upvotes. From this thread: http://news.ycombinator.com/item?id=128713
There was no "thinking" that was involved in creating the list. It was a pure mechanical process. That's why there are two dupes and a lot of books that didn't make it.
I guess to be completely fair I should have written a program to scrape every book mention on HN and then cross-matched them to aggregate votes. But I was just trying to make a larger version of an HN comment in blog format, so I didn't take the time to write up a system. As it was, it took most of the day tracking down links, book references and such.
I can assure you that there was no finagling with the list or author's opinions that were inserted. I have "coders at work", and it's a great book. It would have made my list easily. There are a bunch of other books just like it. My list would have included more Java books, and books about tracking to-do items. But this wasn't my list. It was HN's.
I up-voted you, because I though this post of yours offered an honest opinion of your view on the matter. You where down to 0 and I though your opinion was a valid viewpoint, I don't like to see opposing viewpoints suppressed just because they are not in agreement.
I suppose, I could've phrased the post: Is a link full of SEO spam, aa links, and ad networks a legit HN post?
I guess from the upvotes and comments, it is. I was strangely curious.