It's interesting that there was no real announcement in the video, just Brock Lesnar letting the world know that he has an autobiography in the works that covers his WWE and UFC careers. Hopefully we'll hear so more information regarding the book soon, like a title, for instance. Also, check out that scar on his left cheek from his bout with Cain Velasquez.
Update:
The people who uploaded the video pulled a fast one, and edited the video to show the title of the book. Hopefully future endeavors for hyping the book are slightly more thought out.