Such a great book! There's now an "Update" for the American/Canadian edition, listing a whole series of corrections. It can be found at http://crownpublishing.com/SweetUpdate
Hi fellow "sweet" owners. If you have the North American edition, you can contact the publishers at sweet@tenspeed.com to get a replacement copy. I did this and got on the list to have the next edition sent to me.
From what I understand, it is only the North American edition that is affected. The British one is fine. The new North American edition I due to be out in April, so it's best to check the corrections if you're going to bake from it.