Correction tape is like that that is like whiteout. It is useful if you make mistakes with a pen. I normally do not need to use it, because I draw first with a pencil, and then I trace over it with a pen. I then erase the pencils. Still, for those that prefer to draw with pens right away, this is where correction tape comes in. Most of them make the correction with white color. I have a bunch of different types of correction tape. The best ones are in Pentel, and also Paper Mate has some useful correction tapes. The first types of correction tapes and fluids were invented in 1956. The inventor was Bette Graham, he also founded the Liquid Paper company. From then on, correction tape has become quite common place.