A new children's book co-authored by Elizabeth Olsen will soon be hitting store shelves. Called Hattie Harmony: Worry Detective, the book is written by Olsen and husband Robbie Arnett with illustrations by Marissa Valdez. Aimed at children in the 4-8 year old range, the book will be released on June 28, 2022. The authors can be seen celebrating the upcoming release in the Instagram video below.

Hattie Harmony: Worry Detective is described as a "fresh approach to wellness" with a focus on teaching children ways to manage anxiety. The publisher also describes Hattie Harmony as a character "filled with warmth and humor" to explain self-care to ways that young readers can understand. You can read the official synopsis below.

"She’s always there to help her friends when they need her. And the first day of school can cause a lot of jitters—from speaking in front of the class to taking the bus. Hattie always finds the perfect tools to calm her friends’ bodies and minds. But when her own fears start to bubble up, can Hattie learn to overcome them herself?"

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Elizabeth Olsen and Robbie Arnett Hope the Book Helps Children

Elizabeth Olsen in Love and Death
HBO Max

"Robbie and I couldn't be more thrilled to introduce the world to Hattie Harmony," Olsen said of the book's release, via People. "Inspired by the picture books we adored as kids, we hope that Hattie will become a friend and a welcomed reminder to be kind to yourself and to each other. We couldn't have brought Hattie's world to life without Marissa Valdez's imaginative illustrations. In the words of Hattie Harmony... 'Worry, Worry, Go Away... There's No Time For You Today.'"

A joint statement by Olsen and Arnett added, "When we sat down to write Hattie Harmony, our goal was to create a relatable character who made talking about complicated feelings fun and engaging for kids. We hope Hattie Harmony will become a welcomed reminder that it's okay to speak up when we need help, and to always treat ourselves and others with kindness."

Viking Children's Books associate publisher Tamar Brazis also said, "Elizabeth and Robbie brought such empathy and humor to Hattie Harmony, which introduces young readers to the importance of self-care. This exciting new series provides both parents and kids with useful tools that they can practice whenever they need a little help coming back to the present moment."

Hattie Harmony: Worry Detective will be officially released on June 28, 2022. As for when to see Olsen next on the screen, those who missed her in theaters in Doctor Strange in the Multiverse of Madness can catch the film when it hits Disney+ on June 21. Olsen is also starring in the upcoming HBO Max series Love and Death, chronicling the true story of housewife Candy Montgomery who murdered her friend Betty Gore with an axe in 1980. The series is coming to HBO Max this year but doesn't have an official date.