I'm about to buy a raw food cookbook

I'd like a decent pop psychology or self-help book on sibling relationships, but most seem to focus on sibling deaths or having a sibling that is mentally or physically ill, or what to do if you are a parent with children who don't get along, or how to prepare for having a second child.

Beyond that, I find books with titles like: Siblings in the Unconscious and Psychopathology: Womb Fantasies, Claustrophobias, Fear of Pregnancy, Murderous Rage, Animal Symbolism.

Not quite what I'm looking for, perhaps, although with the exception of "womb fantasies," I could get into the other topics.