Levi Johnston Writing Palin Family Tell-All
04/25/2011 AT 04:55 PM EDT
The recent Playgirl nude model, who had a relationship with Bristol Palin and fathered Sarah Palin's grandson Tripp, is ready to give an inside view of the famous family.
His story will be revealed in Deer in the Headlights: My Life in Sarah Palin's Crosshairs, to be released this fall by Touchstone Publishing.
"I want to tell the truth about my close relationship with the Palins," Johnston, 20, says in a statement released by his publisher. "My sense of Sarah and my perplexing fall from grace – how I feel and what I've learned."
Johnston adds: "I'm doing this for me, for my boy Tripp and for the country."