Many parents have asked me recently about how to deal effectively with sibling rivalry. The degree of sibling rivalry, and whether or not it has long-term positive or negative consequences, depends on what parents do about it. Please read more at:
The intensity of sibling rivalry and the yearning that children have to be loved “the most” and to be “the best” is lovingly and beautifully captured in the picture book I Love You the Purplest by Barbara Joosse. I have it here in my office if you want to check it out.