Ladder stitch in hand embroidery can be one of two stitches. There's the surface embroidery technique that creates a decorative band that looks a lot like a ladder, with edges that look like a chain stitch. There's also a drawn thread technique called ladder stitch that produces a ladder-like strip of remaining threads in the design area. The ladder stitch in this video tutorial is the former - the decorative band used in surface embroidery. Watch this video from Needle 'n Thread to see how it's done.