Not sure if anyone has already seen these, I recently downloaded the PDF's and thought they were great. All of the recipes have pictures, the measurements are American style, but it's mostly just teaspoons, tablespoons and cups. The recipes are all endorsed by brands but there are some great recipes, with ingredients you can get in the supermarket. I think they are definitely worth a look if you're into your food.
The 2011 one has loads of yummy looking homemade burgers and American meaty sandwiches. I would also really recommend the spaghetti all’Amatriciana from the 2010 book.
To see them, you need to scroll down to 'Recipes: The Costco Way'. You can then download the recipe books for free
Why do people do it?