Prince Charles (left); King Abdullah II of Jordan (right)

England's Prince Charles is working on Harmony, a call for balance between "Man and Nature" that HarperCollins has tentatively scheduled for next year, with a picture book version planned for 2011, the publisher announced Monday.

Meanwhile, Penguin Group (USA) will release a memoir in 2010 by Jordan's King Abdullah II. The book is called The Last Best Chance: An Intimate Account of the Pursuit of Peace in a Time of Peril. In a statement Monday, Penguin called the book a "personal narrative rich with human drama" by "an active participant in major events."

AP