Counselor and Author Kelly Curtis just wrote an article about separation anxiety on 5 Minutes for Moms. She talks about empowerment as a key component for overcoming separation anxiety. It's written to encourage and equip parents, but it's also a good article for caregivers to read because it will give you strategies to help parents who's children struggle with separation anxiety.
If you like Kelly's monthly columns on 5 Minutes for Moms, you can also check out her blog and her book, Empowering Youth.