During his lifespan, Mattie published five NY Times Bestselling poetry books:
He was working on several additional books at the time of his death, and left behind countless essays, short stories, speeches, and poems.
As Mattie requested, his mom, Jeni, edited and published two books he was working on during his final year of life. Mattie’s final Heartsongs collection with eight chapters of poetry, and a collection of peace essays and e-mail correspondence with Former U.S. President Jimmy Carter:
Both books became NY Times Bestsellers, and in 2007, Just Peace was awarded the IPPY Gold Medal for Outstanding Peacemaker Book of Year.
In 2009, Mattie’s mom, Jeni Stepanek, penned Mattie’s memoir in book titled:
With a foreword by Maya Angelou, the book recounts the years before Mattie got sick; how he handled the loss of his siblings from the same disease he had; his decision to spread the message of peace and hope; and how, when he became a celebrity, Jeni helped to keep him grounded, and remember to embrace being a kid. Including never-before- seen poems, journal entries, photos, and correspondence with famous friends, Messenger is an inspirational book about a life lived to the fullest.