[ValuedMinds strongly recommends you review this book yourself before reading it to children.]
Though the content is quite correct, the writing style is noticeably didactic and, strangely, is in the first person present tense:
This morning, when I run around the corner of our hall
I bump into him. …
He picks me up and says,
‘Did my little darling hurt herself? Let me see.
The author tries promote communication between parents by the child, especially if ‘the problem’ is another family member. What if, as does happen, neither parent is worthy of trust?
An unjust bias of the book lies in the fact that all the negative situations involve males, without a “not all males” clarification. Some studies report that females are guilty of 60-80% of child physical abuse. Panorama - on BBC1, Monday 6th October 1997, reported that women commit as much as 25% of all child sexual abuse, see here —it is shocking. The site also reports that some 60% of battered women are just as violent as their husbands. This has obvious consequences for children.
You Can Say No is a well meaning but overly one-sided, politically correct, presentation of dangers some children may face. The scenarios are a bit scary for sensitive children, but that might be useful for careless or overly trusting children.