This hardcover book, titled "Biorhythm Sports Fore Casting" by Bernard Gittelson, is a vintage item published by Arco Publishing Company Inc in 1977. It is a nonfiction narrative type book with 238 pages that discusses sports science and is intended for adults. The book measures 10.3 inches in length and 8 inches in width and features paper on top of a red hardcover. Condition: all excellent condition inside of book including red hardcover, except the paper cover, shows signs of age as per images. The book is written in English and is the original language. It is not personalized or signed. It is a great addition to any book collection for sports enthusiasts or vintage book collectors.