How do you properly soak and cook barley? I am going to be making a beef barley soup and need to soak the pearl barley overnight. There are no directions on the back of the package and so I am unclear on what to do. There is a recipe for a barley and bean type soup and it says to soak the barley overnight in water and then drain it in the morning. Is that all that needs to be done? 

Also, once the barley is all done soaking, do I add it into the broth and let everything cook or are there more steps?
You probably misread the recipe. It's suggested that dry beans soak overnight so that they cook in a reasonable amount of time the next day (unless you use a pressure cooker.)

There is no need to soak barley, pearled or not. It's my guess that you mistook the bean soaking for barley in the recipe. That, or it's a typo.