[shrugger]

Then don't read it. In several years you've made only a couple negative, snarky comments on HN.

If a guy writes an entire book and you don't want to read it because he made a spelling mistake, then don't.

[claystu]

I disagree. The presence of several typos on the main page is a big red flag for a technical book.

Having said that, I'm still interested, but the lack of proofreading on the author's release announcement for his book is definitely counterproductive.