Amanda Knox — Signs with Book Agent … Who Repped Barack Obama

The Amanda Knox story is one step closer to bookstores everywhere — TMZ has learned, she’s signed with a very powerful literary agent in DC. 

According to sources, Amanda recently inked a deal with lawyer/lit agent Robert Barnett — who has brokered book deals for some of the biggest names imaginable … Barack Obama, Bill Clinton, George W. Bush, Hillary Clinton, Sarah Palin and Dick Cheney … to name a few.

Our sources say Amanda’s Italian ex-BF Raffaele Sollecito — who was also convicted and then exonerated in the murder of Meredith Kercher — has signed with a book agent of his own … Sharlene Martin, famous for brokering deals for several NY Times bestselling authors.