The sewing machine manual, especially if it is for a newer machine, will usually indicate how the spool of thread should be placed on the machine. On my newest machine, it has two horizontal thread holders, one for those skinny spools and the other for standard sized spools. The instructions are to have the thread come out from underneath towards you before threading the machine. For the larger cones of thread, I use the tall portable thread holder with a large thread guide/hook. The thread comes off the top of the spool or cone. Hope this helps.