The "Encyclopedia of Marbles Knives and Sporting Collectibles" is a valuable reference book authored by Arni Dunathan and published by SoldUSA.com in 2005. This 1st edition hardcover book is a comprehensive guide on the topic of marbles knives and sporting collectibles, featuring illustrations and detailed information for collectors. The book is written in English and is a must-have for enthusiasts looking to expand their knowledge on this unique subject matter.