Dog Aggression: Fighting is a DVD by the very well known Dr. Ian Dunbar.
Cesars Way. A book by the well known Cesar Millan
Aggression in Dogs by Brenda Aloff
Cesar Millan - Aggression A DVD all about Dog Aggression. The reviews look good on this one.
Dont Dump the Dog: Outrageous Stories and Simple Solutions to Your Worst Dog Behavior Problems This book has 22 5 star Reviews, and the latest review is a true review on the book, check it out.
I will recommend you all once again to Don Sullivan The Perfect Dog His system is great and can turn dogs around pretty fast.
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Click Here to see a lot of products that can help you tremendously with your training and helping with aggression issues.
Hopefully you found something that will help you and your dog get through any aggression issues or even simple behavior problems your going through.