After I wrote a blog post with tips on what to do if your dog shows aggressive behavior, it became one of the more popular articles here, so I made a Youtube video about dog aggression, based on that article:

If you want to read the original article, it’s here: Nine tips if your dog becomes aggressive.

For more on the topic, here’s a book at Amazon by noted dog trainer Brenda Aloff. Clicking on the image takes you to it: