The ebook is great, but it's missing complete start to finish examples. Pad it out with them and you could double the price (and it would be massively more helpful!). Maybe a todo app, flappy bird clone, etc.

Thanks for the suggestion. I think I'll add another chapter at the end that walks through a longer example start-to-finish.

Not sure if you have a better method for getting feedback. First sentence in 12.6 has a minor typo: "“Subscripts allow you *do define a way of allowing your class”

I believe you just need to remove 'margin-bottom: 2em;' from .top-bar in styles.css

Thanks, I'll try that. Although I'm reluctant to clear the cache until it goes off the HN front page :)