I was a bit disappointed when I finally received it. I expected something that would help me to spot general mistakes in blitz games, but take my word for it, it's for the individuals who seek a book about basic traps in the king pawn games and beginning opening guidelines (castle early, advance only the center pawns, etc).
Nevertheless, it is an excellent and helpful book for the beginning individuals. It emphasizes the important concepts and the format is easy to read. It also tells of possible mistakes in the opening and how to basically take advantage of them. If this were the first opening book I read, I would be a better player today. This book is also recommended for those who teach chess, as it could serve as a reference book.