These are links for the position statements on several topics by the American Veterinary Society of Animal Behavior.  Please take the time to read them.  They are full of very helpful information.

Dominance position statement

Punishment position statement

Puppy socialization statement

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Why Punishment fails; what works better- concise handout on punishment.  Some common examples are given.

The Barking Dog- why dogs bark & what you can do about it.