As many have commented in the flickr group discussion, the instructions for the binding and handles are a bit curious. I will say that to achieve the look shown in the book photo, with inch wide bindings, you cannot follow the book instructions. The instructions call for the bindings and handles to be attached similar to bias tape. If you do that, your finished binding will only appear about half an inch wide. For my binding and handles, I just pressed the pieces in half and sewed on. It was tricky sewing, but I like the outcome, where you can see a little of the lining along the edge of the binding. As you can hopefully see in the picture, I sewed the handles in half only just past the body of the bag and left the rest open, so the lining fabric will show and so the wide handles will be comfortable on my shoulder.
My daughter thinks it makes a great messenger bag!