Many parents wonder how their sweet baby which gurgled happily at them for the first 12 months changes so suddenly into a bellowing, tantrum prone, carpet biting toddler. What went wrong? Whose fault is it? What can be done about it? With humour and common sense, Dr Green answers these questions and many others like them. He qualms fears of "abnormal" bad behaviour, points out the strains of bringing children up and offers practical advice on all fronts from discipline to sleeping problems, tantrums to toilet training.