Danica McKellar is once again extolling the magic of numbers in a new picture book for children, People magazine reports.

Random House Books for Young Readers will publish the actor and mathematician’s I Love You 100: A Counting Book Full of Love, illustrated by Josée Masse, in the fall. The press describes the book as “a wonderful learning resource and a perfect read-aloud at bedtime.”

McKellar first rose to fame for her role as Winnie Cooper on the sitcom The Wonder Years, which ran from 1988 to 1993. In 1998, she graduated summa cum laude from the University of California, Los Angeles, with a mathematics degree. She has long been an advocate for math education.

McKellar has written 11 mathematics-themed books for children, including Goodnight, Numbersand Bathtime Mathtime Shapes, illustrated by Alicia Padrón, and The Times Machine! and Double Puppy Trouble, illustrated by Masse.

In I Love You 100, Random House says, a mother “counts up all the many moments and reasons that she loves her kiddo—while helping the reader learn to count up to 100! Whether the duo is playing with toy boats, swinging, or cleaning up messes, there is no shortage of love.”

McKellar announced the book in a video on the social platform X, saying, “This is my 12th math book. I’ve been writing math books for 20 years now.…If you look at [this one], it’s kind of like me and my son, so it’s really sweet. This is near and dear to my heart.”

I Love You 100 is scheduled for publication on Nov. 4.

Michael Schaub is a contributing writer.