Sometimes it seems like a great irony of parenting that kids don't come with a manual; yet everyone has suggestions on how to raise kids, especially those who haven't done it!  Here are some books that I have found helpful for families (both kids and parents) in the past. 

General Parenting and Discipline (the book I get the most rave reviews about from parents):
Love and Logic Magic for Early Childhood: Practical Parenting from Birth to Six Years by Jim Fay and Charles Fay (also a pretty good website:  www.loveandlogic.com )

For children with excessive fears:
Freeing Your Child From Anxiety by Tamar Chansky

For reactive, difficult-to-soothe kids:
The explosive child: a new approach for understanding and parenting easily frustrated, chronically inflexible children by Ross W. Greene

For understanding teenagerdom:
Get Out of My Life, but First Could You Drive Me & Cheryl to the Mall: A Parent's Guide to the New Teenager, Revised and Updated by Anthony E. Wolf

For understanding your teenage girl's transformations:

Untangled: Guiding Teenage Girls Through the Seven Transitions Into Adulthood by Lisa Damour, Ph.D.

and 
Reviving Ophelia: saving the selves of adolescent girls by Mary Pipher

For kids with emotional eating:
Full Mouse, Empty Mouse by Dina Zeckhausen

For children who have experienced a loss:
Invisible String by Patrice Karst 

Tear Soup - A recipe for healing after loss by Pat Schwiebert