Corduroy is just like velvet in the fact that they both have nap.
They are both considered a one-way design fabric.
When you brush your hand down the fabric, you can feel that it is going with the way you rub, or against it.
One direction will look darker than the other, so if it matters to you, have the direction all going the same way.
Our group in Midland sends quilts all over the world so there is a lot of donated fabric.
There were several boxes of already cut squares done by a gentleman in the group.
Some had tried to sew them together, but after trying to stitch them on a regular machine, gave up.
I brought the boxes home and stitched them together on my serger. You just hold both ends together as you serge.
These turned out very nice and was shipped out to some very happy teens that needed them for warmth.