Train Your Dog to Stop Barking

First of all, you must be alert just like your dog! You have to check what your dog barks at. To stop any unwanted barks is a tricky job, and to do that you must first consider what exactly is making your dog bark.
There are usually these problems that I know. There might be more unique ones, but let me tell you what I know:
-The Cat: A cat is a not always a dogs rival. There are cases in which they co-exist together, but a dog never tolerates a taunting cat! Just check whether a cat is taunting him through the window.
-Yard access: Many dogs, especially in my German Shepherd's case, love to run roll and do everything that annoys a 'cleanliness-caring' master.
-No reasons: 'Uh!what's that?' Let me tell you: most of the dogs bark unnecessarily just because he(less among 'she')likes the sound of his own bark!!

-And most importantly: Check your pet's basic needs like hunger, thirst or toilet. If a pup is barking, he/she might be trying to tell you something among these.

Let's imagine you found out the problem. What next?
Yup! Kick it away!
Try your level best(on economical and other basis) to remove your dog's motivation for barking. For example, make a dog door for easy yard access. Close the window shades to avoid the cat (Oh my! Don't kick cats away! We must not be cruel to animals!).

If it still continues, there is an effective and not-so-cruel-at-all typ of thing you can do. Buy a Citronella no-bark collar. No it's not as pet toy either. It is a simple working device: if your dog barks, the collar sprays a itty-bit of citronella, which dogs dislike.

Train your dog. They are conditional learners. When your training for 'Stop Barking' goes on and the dog actually stops barking give him a praise. Timing is important. And try to be as kind as possible and train in a calmer environment first. Above all Have fun!