Drew Barrymore shares adorable picture of daughter Olive reading Tina Fey's book Credit: Courtesy Drew Barrymore; Inset: Jeffrey Mayer/WireImage

Mini bookworm! Drew Barrymore shared an adorable picture of her 23-month-old daughter Olive reading Tina Fey's best-selling book Bossypants on Wednesday, Aug. 20.

"One of my favorite girls reading one of my favorite books written by one of my favorite women! #tinafeyrules #summerreading," the Blended actress, 39, captioned the snap of her first-born reading in a hat and swimsuit on the beach.

While pregnant with her second daughter, 5-month-old Frankie, Will Kopelman's wife told Us Weekly she spent a great deal of time reading to Olive to prepare her to be a big sister.

"I read her a lot of books. She loves books! That's her favorite thing in the world, books," Barrymore told Us last year. "She is 14 months so it's as much as she can grasp, but she definitely gets it. She points to my stomach and says baby. How cool is that?"