Normally confident moms and dads grow weak-kneed when their children enter--gasp --puberty. Barbara and Dennis Rainey, parents of six teenage or older children, map out the unfamiliar, demanding landscape of both pre-adolescence (ages 10-12), as well as the teen years that follow."Preadolescence is when convictions are shaped; adolescence is when convictions are tested," they advise parents. In Parenting Today's Adolescent the Raineys help children...