John Cena Announces His Book, Release Date Revealed '); 16-time World Champion John Cena announced Thursday morning on Twitter that his new book “BE A WORK IN PROGRESS: And Other Things I’d Like to Tell My Younger Self” will be available on April 6, 2021. A daily affirmation to be the best version of ourselves. From my Twitter account to the world. BE A WORK IN PROGRESS: And Other Things I’d Like to Tell My Younger Self is available on 4.6.21.