My children 7 and 10 years have received as a gift from my aunt. I have not traveled before caution, especially after reading some reviews ... and they seem exaggerated to me afterwards. I give an education that my entourage strict judge my children, but you can not raise them in airtight does not bubble, unaware of the world and of life. In short this book is both fun and gives children and parents the means to better understand, I recommend it!