Nobel Prize-winning activist Malala Yousafzai is writing her “most personal book yet,” the Associated Press reports.

Yousafzai, 25, started her career in activism in 2009, at the age of 11. She advocated for the rights of girls to attend school; they were frequently prohibited from doing so in her home district of Swat, Pakistan, ruled by the Pakistani Taliban at the time.

She was shot in an attempted assassination in 2012. She moved to England and redoubled her activism, winning the Nobel Peace Prize in 2014; at 17, she was the youngest person ever to be honored with the award.

Her new book, which as yet has no title or release date, will be published by Atria, which calls it a “breathtaking story of recovery and search for identity, a candid exploration of her coming-of-age in the public spotlight, and an intimate look at her life today.”

Yousafzai’s previous books include a memoir, I Am Malala, which was also published in a young readers edition; a children’s book, Malala’s Magic Pencil; and a nonfiction book about refugees, We Are Displaced.

Yousafzai announced her latest book on Twitter, writing, “I am overjoyed to announce that I am working on my next book! The last few years of my life have been marked by extraordinary transformation—finding independence, partnership and, ultimately, myself. This October will be a decade since ‘I Am Malala’ was published, shortly after my 16th birthday. I am excited to share what has happened since and continue my journey with the incredible teams at @atriabooks in the U.S., @wnbooks in the U.K. and more countries coming soon.”

Michael Schaub, a journalist and regular contributor to NPR, lives near Austin, Texas.