Your teenager walks in the door from school, a little late. "Hi! How are you?" you say. "Hey. Fine," he replies, heading toward his room where he'll close the door behind him.

What's a parent to do? Teens Happen is here to help, but it isn't your run-of-the-mill parenting book. This one was actually written by a teenager, and the author—high schooler Shea Rouda—gives you an unprecedented, behind-the-scenes look at the teenage mind, covering everything from school, sports, drugs, and siblings to acne, driving, college preparation, dating, and, yes, even sex.

Rouda's fresh, frank, and funny perspective will open your mind to new aspects of the common problems you face with your teenager, whether male or female, and arm you with solutions that find a common ground between parental oversight and teenage freedom.