It wasn't until the Saving Mr. Banks movie came out that I found out the character, Mary Poppins had begun in a book by P.L. Travers. The Mary Poppins books are delightful, but I found frequently that I expected to hear Julie Andrews burst into song. There is more than one book in the series, but apparently P.L. Travers disliked the movie so much, she refused to allow Walt Disney to adapt any of the other books for the screen. I can see why Walt Disney's children loved Mary Poppins so much they asked their father to make a movie from the book.
From the cover:
A blast of wind, a house rattling bang, and Mary Poppins arrives at Number Seventeen Cherry Tree Lane. Quicker than she can close her umbrella, she takes charge of the Banks children, Jane, Michael and the twins - and changes their lives forever.
Unlike other nannies, Mary Poppins makes the most ordinary events extraordinary. She slides up banisters, pulls all manner of wonders out of her empty carpetbag, and banishes fear or sadness with a no-nonsense "Spit-Spot". Who else can lead the children on one magical adventure after another and still gently tuck them in at the end of the day? No one other than the beloved nanny Mary Poppins.