How do i make my dog stop barking?

I have a 3 year old yorkie and we just got him from a rescue. He is really well behaved other than barking. We think he is scared of dogs and people. My sister had a party with like 20 people at our house and he was barking at every one but backing away. He also barks and almost every dog we see on walks. He doesn't bark at most people on walks. He also barks at the doorbell.

2 things that i know of" 1) shake a can that has some rocks or beans or coins inside of it and say no barking firmly- that can scare the puppy from barking 2) just spray him with water whenever he barks. He will get the lesson or he may just be bound to bark constantly

1.he's new, needs to slowly become adjusted to new home, new people;needs socialized, gently.He's tiny, he's strange,& twenty giants?He didn't feel safe. Introduce him to new people in quiet situations, one or two at a time in a calm atmosphere. needs to feel secure, not frightened - your job http://answers.yahoo.com/question/accuse_write?qid=20090821174909AAaolCh&kid=NbUvWDG1UzQ6H44JCy.Y&s=comm&date=2009-08-22+10%3A48%3A30&.crumb=

An instinctive canine behavior, a bark now and then reminds you that your dog is still very much a dog. However, constant barking can be disruptive, if not downright nerve-racking. Fortunately, there are ways to prevent or curb problem barking.

here's how to treat this problem http://dogtime.com/barking.html

Since it's rescued it probably is not used to it's suroundings. It thinks something is going to harm it, so he's warning them to back away. Or he just REALLY good hearing and just doesn't want you or itself to get hurt.

well dogs need to talk too but never every use shock collars they hurt the dog very much shut tell it to stop or just spray it with just normal water nothing to hurt it =)

stand out side an d find somthing for in to barch at. every time it barks hold its mouth shut untill it calms down. then scold it.

He was probably abused by people a lot and even dogs too. He is most likely afraid now. Let your baby be!

watch dog whisper hes a expert