Sheldon Cohen is the author of the upcoming book This Sweater is for You!, but you might know him as the award winning animator and director of The Sweater. Adapted from Roch Carrier's short story "The Hockey Sweater", The Sweater is one of the most beloved animated films of all time. 

Sheldon recently received the finished copies of This Sweater is for You!, but excitement soon gave way to irritation when he found an error (a very small one, or so we're told). At first, Sheldon was understandably upset, but then he thought "why not make it into something interesting?" 

The hunt is on! If you’re the first person to spot the error and tell Sheldon, you’ll win an original cell from The Sweater!

Stop by Sheldon Cohen’s website for all the details. Good luck!