This is the English language tournament book of the famous interzonal (to Select players for the candidates tournament for the world championship) in 1970 won by Bobby Fischer. The book is uncommon, and a copy in similar condition sold for $73 about a year ago at the Chess auction site,chesslund.com. A copy in poor condition is currently for sale on eBay with a starting bid of $32. This book is in like new condition. The glued binding is perfectly intact. There is no marginalia, and no foxing. There are detailed notes, diagrams, and photographs. The book is in English descriptive notation as shown in the photographs. Own a piece of chess history!