Bonus 2 — What to Do About Separation Anxiety
Separation anxiety is different from disobedience. A dog with anxiety isn't "misbehaving" when it destroys things or barks nonstop while left alone. It is in real distress.
Bonus 2 of the guide "21 Days of Dog Training at Home": 4 pages in PDF. You can buy it on its own, or get it included in the bundle with the guide and both bonuses.