James R. Callan
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James R. Callan

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After a successful career in mathematics and computer science, receiving grants from the National Science Foundation and NASA, and being listed in Who’s Who in Computer Science and Two Thousand Notable Americans, James R. Callan turned to his first love—writing. He has had four non-fiction books published. He now concentrates on his favorite genre, mystery/suspense. An award-winning author, Callan's seventeenth book is scheduled for publication in 2024. In addition to writing, Callan also speaks at writing conferences and teaches writing workshops in Texas, Mexico, and online via zoom. He and his wife split their time between homes in northeast Texas and Puerto Vallarta, Mexico. His website is at: http://www.jamesrcallan.com/ It provides more information on his books and his work, plus a contact form to forward an email to him.
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