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Writer and producer Frank Gilroy.

Almost 50 years ago, Frank Gilroy wrote a play that became a major broadway hit. Called "The Subject was Roses," the play starred a young Martin Sheen as a soldier returning home to his family after World War II. The play helped launch Sheen's career and won Gilroy a Pulitzer prize and a Tony award.

Now, decades after Gilroy's last big hit, he's revisiting the subject at the age of 86. And this time he's using an entirely new medium - The Kindle Single. Kindle Singles are short, digital quick reads made for Amazon's Kindle e-book readers. Gilroy's short story is a new memoir called "Private" and it reached number two on the Kindle Single best seller list.

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