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The fledgling firm 's first three books were written by Marc Allen ; the fourth book they published , Shakti Gawain 's Creative Visualization , released in December 1978 , became a bestseller under the guidance of Sky Canyon ( aka Jon Bernoff ) , who was President and Publisher from 1979 through 1986 , selling over 3 million copies in North America to date , and another 3 million copies worldwide .
 Shakti Gawain
Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: location, person, organization 
Text: {0} 
Answer:
 Shakti Gawain