I read and loved 'Why French children don't throw food' so was curious to see if this added anything, which it does, since the first book is much more about French culture whereas this is very much more practical.
I have already implemented much of the advice with great results! It's just good to get rid of that nagging voice which says 'you're being mean to your child' and remind yourself that you are there to teach them to become reasonable adults by instilling a framework of discipline and polite effective communication rather than trying to make them happy in individual instances. Saying 'no' and meaning it makes for a much nicer experience when you're out and about when they ask for e.g. ice-cream and hour before lunch. If they know 'no means no' they give up immediatley which means no whining or tears.