Her books featuring mice are used to teach children about simple concepts. Mouse Paint teaches kids how the three basic primary colors are mixed to make all of the other colors as the mice make a mess.
Mouse Count teaches kids how to count up to ten and back down again as the mice play a trick on a snake.
Mouse Shapes teaches kids some basic shapes while also showing how they can be used to make other shapes as the mice play a trick on the cat.
Other books of hers include other animals. In Hop Jump, a frog shows that dancing is just as much fun as hopping and jumping. It's okay to break away from what you are always expected to do.
For Pete's Sake is about an alligator who is convinced that he is a flamingo.
Ellen Stoll Walsh lives near Rochester, where I live. I have had the pleasure of meeting her a couple of times. She is a very quiet and humble woman who does not wish to catch up to the modern age. She declined being interviewed, does not do email and does not have her own website. She simply likes to share her creations with the world.