Buku ini berisi pertanyaan, teka-teki, dan permainan kata-kata dalam 180 kategori. Dalam susunan yang berwarna agar mudah mencocokkan pertanyaan dan jawaban.'
The painful and baffling mysteri as to why some obviously bright children do not begin talking until long after the 'normal' time is explored in this book through personal experiences and the findings of scientific research. '