If your kid has been demanding a Happy Meal every time you make your way into McDonald’s, then they’re in for a big surprise. In an effort to make kids interested in reading, one of the largest fast food chains in the world is offering children’s books instead of those typical toy prizes that come with every fun box.

McDonald’s will offer the promotion until February 15. According to a report by the Los Angeles Times, the fast food chain is including children’s books this time around. One of four books is Michael Bond’s classic “Paddington,” and three Valentine’s Day-themed books: Bruce Hale’s “Clark the Shark Takes Heart,” Laura Numeroff’s “Happy Valentine’s Day, Mouse!” and Kimberly and James Dean’s “Pete the Cat: Valentine’s Day is Cool.” The fast food chain isn’t really ditching its Happy Meals, rather, it’s adding a twist to it.

This isn’t actually the first time that McDonald’s went with books instead of toys as a prize in a Happy Meal. The project marks the fourth year in which McDonald’s distributes through Happy Meals, and it is done in partnership with publishing giant HarperCollins and the United State’s largest nonprofit literacy organization Reading is Fundamental (RIF). The fast food chain began the project three years ago. It plans to distributed over 50 million children’s books by the end of the year.

“The benefits of reading abound. We know it increases a strong foundation of learning, keeps kids in school, increases graduation rates and inspires the pursuit of post-secondary education and training required to transition into adulthood,” wrote Carol H. Rasco, president and CEO of RIF on Medium. She notes that by the end of the year, the project can provide a book to children that are under 12 years old in America.

The company is committed and grateful to be working with the fast food chain and the publishing giant. This way, books and the joy of reading are ensured to remain a part of every child’s progress.