The pocket guide to debugging
As the author, I don't think this really makes sense on the front page of HN since you have to pay to read the zine.I am doing a giveaway for folks who can't afford the zine though -- if $12 is a lot of money for you but you think the debugging advice in there would be helpful, you can use code BUYONEGIVEONE at checkout to get the PDF version for free. (it'll ask you for a billing address but if you dislike sharing your address unnecessarily like I do, you can just put a fake address)