Like Viacom mogul Sumner Redstone, Bertelsmann first lady Liz Mohn looked no farther than Random House, her company’s U.S. publishing property, to release her upcoming book – a paperback treatise on corporate social responsibility and philanthropy.

It’s unusual — some would say unseemly — for a media titan to publish a book through a company-owned publishing arm.

Miramax topper Harvey Weinstein and Disney chief Michael Eisner both went outside the Mouse House empire to publish their respective memoirs.

Redstone, however, turned to Viacom-owned Simon & Schuster to publish his 2001 book, “A Passion to Win.”

Random House says it has a long tradition of publishing books by company leaders, notably co-founder Bennett Cerf‘s defining memoir of his career. Also, it was actually Random House’s Crown Publishing that approached Mohn about updating her 2001 book “Love Opens Hearts” for imprint Three Rivers Press. Original hardcover was published by German house C. Bertelsmann.

Paperback, due out in May with an initial printing of 10,000, will be retitled “The Heart of Business: Integrating Prosperity and Values for Real Change.”

“We think people like Mr. Cerf and Mrs. Mohn are people that have accomplished a great deal and have something interesting, if not profound, to say,” Random House spokesman Stuart Applebaum says.

The book will be targeted at German expats living in the U.S., German-American orgs and philanthropy professionals.