Was skeptical at first whether we should order this book. First, because my little one is only 2 months old, and secondly, because one test / attack indeed can not, in order to know whether crackles and each page or other noise has and feels pleasant. The purchase has absolutely paid off !!! My son is excited about it. On each side there are to rediscover a new sound (crackling, rattling, squeaking) and the individual motifs are made of different materials, which of course makes it even more exciting for him. Just the best! I can only recommend!
