Brenda Aloff’s Fundamentals. On-demand video. Promote a great relationship with your dog, establish consistent behaviors for easy, reliable handling and lay the foundation for more advanced training with this great DVD. Brenda Aloff is a professional dog trainer, seminar presenter, and author of Aggression In Dogs and Canine Body Language. Whether you’re working with a young puppy or an older dog, this is the perfect tool for the professional trainer or the motivated owner.