On any machine you should be able to tell which way it threads. Just look at the last little thread guide by the needle. It threads from that side of the machine, and the flat side of the needle goes on the opposite side. If the last little thread guide, like on some newer machines, is in the front, then the needle is threaded from the front. Unless that last little thread guide is missing, one shouldn't have a problem with deciding which way it is threaded. I hope this helps. Now as for the bobbin.... different machines have it going different ways, so I can't help there too much. That is where the book comes in handy. :-)