This is really a short, useful book for anyone getting stuff remotely manufactured in China. Some examples of what went wrong from someone who lived there (so things shouldn't have gone wrong).

A good example of a problem: supplier underbids to get the business; first and second shipment are fine, then the third has an unauthorized change because now the factory wants to cut their costs to make a profit. In the author's case IIRC it was shampoo: he ordered a set in different scents (lilac, almond, coconut perhaps?). Suddenly all he got was almond because I suppose the factory got a better deal if they bought more.

Also remember that Apple gets the quality they do by having a lot of their own personnel on site to stay on top of everything that is going on. You can't afford that.