The scanner at my home is a new one and I didn't find how to set darker pictures for the output. So most light sketches are too bright and you can barely see the lines... Hopefully some of them were shaded and you can see most of the drawing (yet not all of it)
It's not an awesome sketchbook anyway so don't worry about skipping some, it's just a way to show how it went. (Also they're not sorted, sometimes you'll find older ones or recent ones mixed up). Have fun.