Retiring Rep. Patrick Kennedy (D-R.I.) will write a memoir about his struggle with depression and alcohol and drug addiction, publishers announced Tuesday.

Houghton Mifflin Harcourt plans to publish the forthcoming book, "Coming Clean," in the fall of 2011.

Kennedy, son of the late Sen. Edward Kennedy (D-Mass.), has thus far stayed mum about his plans after he leaves Congress. The 43 year-old has represented his adopted state of Rhode Island for eight terms.