Goodnight, Numbers by Danica McKellar Ten Magic Butterflies by Danica McKellar Double Puppy Trouble by Danica McKellar I Love You 100: A Counting Book Full of Love by Danica McKellar Bathtime Mathtime by Danica McKellar Bathtime Mathtime: Shapes by Danica McKellar Do Not Open This Math Book by Danica McKellar The Times Machine! by Danica McKellar