Work is a scalar quantity, so it has only magnitude and no direction. Work transfers energy from one place to another, or one form to another. The SI unit of work is the joule (J), the same unit as for energy.

Does work done depend on direction?

If the displacement is in the direction of the force, then work is positive. If the displacement is in the opposite direction of the force, then work is negative. If the displacement is perpendicular to the direction of the force then work is zero. So, the work done depends on direction.

Is direction necessary for work?

In order to accomplish work on an object there must be a force exerted on the object and it must move in the direction of the force.