Bought this book for my nephew who has always had an interest in building. At the age of three he was able to put any toy, plane or castle together without someone reading the instructions to him. I bought the book to see if he an interest in understanding the basics of constructing a building. He opened the book and within 60 minutes had drawn a bridge, a skyscraper and a castle. He has completed the entire book and his older sister is also using the book. I highly recommend this book to any adult interested in expanding a child's mind. He may never become an architect but he has developed areas of his brain that might help him solve a problem in other disciplines whether science, math, or art. Good book. I would like to use it also.