The teenage years can be fraught with anxiety, whether it's about your looks or your best friend, exams or the ozone layer. And it's easy to feel that no one else has ever been there before, and that there is no one to help you through. Not so, says Marina Baker. Once a teenager herself, she enters into every concern with practical advice and genuine understanding. Her Survival Guide covers everything from babysitting to tattoos, from divorce to introducing your parents to organic food. Never patronising, always sensible and informative, her advice is also great fun.