Now that we’re back to school and trying to get everyone back ‘with the program’, you might find this link interesting – Commonsense Media list of books that teach manners.
I would add another book we liked..
Richard Scarry’s Please and Thank You Book – Richard Scarry; Random House, 1973
suitable for age 3 and up
In inimitable Scarry style, a primer on thoughtful behaviour, comportment at parties, being helpful, etc. Surprisingly comprehensive and only a wee bit preachy. Starring all your favourite Scarry characters. When my daughter was obsessed particularly interested in tea parties/birthday parties/etc., she quite enjoyed the short stories in this book.