This is a beautiful children's board book called "Barbie and the Diamond Castle" by Ruth Koeppel and Mattel Photo Studio. It is part of the Barbie book series and was published by Reader's Digest Association, Incorporated, T.H.E. in 2008. The book is 8.8 inches long, 7.7 inches wide, and 0.4 inches high, with only 10 pages.

The book is in English and is a perfect choice for young girls who love Barbie and enjoy reading stories about adventure, friendship, and magic. The book weighs 8.4 ounces and is in excellent condition, ready to be enjoyed by a new owner.