How to Perform an English-style PSSO decrease stitch
This clip demonstrates a left-leaning decrease sometimes used in knitting. It is usually called the "pass slipped stitch over" decrease (PSSO), or the K1, SL1, PSSO (knit one, slip one, pass slipped stitch over). In this clip, it's shown in the English style. For complete, step-by-step instructions, and to get started using this stitch in your own knitting projects, take a look.