Happy Birthday, Winnie! is a children's book written by Valerie Thomas and illustrated by Korky Paul. It was first published in 2007.
It's Winnie's birthday and she's celebrating in style with a garden party. She uses her magic to invite guests and transform her garden. Things start to go wrong when Winnie toots on the magic trumpet that cousin Cuthbert gives her, but she soon has everything back to normal and ends the party with an edible surprise for her guests.