Theatrical performance of ENKI based on the writings of Zecharia Sitchin.
西琴的首部著作《第十二個天體》於1976年出版,現時已翻印第45次。這部作品是他的《地球編年史》系列的首部,之後他還寫了六本續集。這一系列的書截至2012年 (2012-Missing required parameter 1=month!)[update]還在複印。他的著作被全世界廣泛翻譯,還並被轉譯成盲文,以及在無線電台和電視台播出。他的書目前在全球已售出數以百萬本,被翻譯成超過25種語言[5]。《紐約時報》記者Corey Kilgannon留意到儘管學術界對他的著作的拒絕,西琴依然有「一群忠實追隨的讀者」(a devoted following of readers)[3]。
^ 3.03.1Kilgannon, Corey. Origin of the Species, From an Alien View. New York Times (The New York Times Company). 2010-01-08 [2010-10-29]. (原始内容存档于2012-05-29). Mr. Sitchin was called silly before — by scientists, historians and archaeologists who dismiss his hypotheses as pseudoscience and fault their underpinnings: his translations of ancient texts and his understanding of physics.