Levi Johnston Writes For His Son & Country

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Levi Johnston has gone from the adult section, posing for Playgirl, to the non-fiction section, writing a tell-all about his relationship with the Palin family.

Deer in the Headlights: My Life in Sarah Palin's Crosshairs is coming to stores this fall and Johnston revealed that his motivation for writing the book extended beyond monetary reasons.

"I'm doing this for me, for my boy Tripp and for the country," Johnston told People.

Johnston also teased what readers can expect, saying that the book explains his "sense of Sarah and [his] perplexing fall from grace."