This is a vintage hardcover book from World Book Encyclopedia Yearbooks titled "The World Book Encyclopedia Yearbook 1978 Black Brown". It covers a wide range of topics in world history and is intended for adults. The book was published in 1978 by William H. Nault and is part of the World Book Year Book series.

The book is written in English and has been well-preserved over the years. It's a valuable addition to any collection of vintage books and would make a great gift for someone who's interested in history.