The Spyderco is simple enough to use. The Spyderco sits on the table in front of you with two sharpening rods inserted into the base at a fixed angle (15 or 20 degree depending on what you are doing), I.E. they are in a V-shape. Two metal rods are inserted to the left of the ceramic rods - these keep your fingers intact, unless you are trying really, really, really hard to cut yourself. You run your knife blade from butt to tip across the ceramic rod on your left, and then the one on the right, holding the blade vertically. (That's the brief version - you do this many times with each set of rods - medium and fine.) And that is the genius of the system --- it is much easier to maintain a consistent angle by holding a knife vertically, than it is horizontally on a stone. All the details are in the manual and the video...and you can sharpen everything imaginable...serrated knives, tools, scissors, etc. I have a sharp vegetable peeler and finger nail clippers for the first time ever. Hope that helps.