The Flat Stanley Collection (Four Complete Books)

Old Hat New Hat

Flat Stanley and the Very Big Cookie

Circle

Triangle

I'm The Biggest Thing in the Ocean!

George Shrinks

Happy Shapes Make the World Go 'Round! Learning About Shapes for Kids - Baby & Toddler Size & Shape Books

Flat Stanley: Show-and-Tell, Flat Stanley!

Round

Flat Stanley's Worldwide Adventures 4-Book Collection: The Mount Rushmore Calamity, The Great Egyptian Grave Robbery, The Japanese Ninja Surprise, The Intrepid Canadian Expedition

Square

Flat Stanley's Worldwide Adventures Collection: Books 1-12

A Greyhound, a Groundhog

Flat Stanley Goes Camping