[caster]

Basically mending is moving the line around after the cast. Anything you do to the line after the cast hits the water is a mend. You can make mends for various different reasons, sometimes you want to create a dead drift, sometimes you're trying to control a swing. You can mend any type of line although, certain types mend much easier. You can mend up stream, down stream, or make a stack mend, depends on the type of presentation. There are many types of mends, what has been detailed so far are a few presentations, but basically ANY time you move the line that is on the water after the cast, it is a mend.