V Stitch

This stitch combines two double crochets to make the stitch. All a V stitch is is two double crochets in the same stitch. So you would chain the same way but when you start your new row you would do one double crochet into the first stitch and than another in the same stitch. Once you have done two double crochets in the same stitch you want to skip a stitch and start in the next one.

This is what one row of V stitches looks like. It may not be evident in the first row but you should be able to see the two double crochets make a V shape. 

This is what two rows look like and the Vs are more evident here. 

A great way to practice V stitches and double crochet would be with a V stitched crocheted blanket.

NOTE: I have also heard of Half Double Crochet V Stitch. This would be practically the same thing except the double crochets would be half double crochets.