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 twelfth book is scheduled for publication in 2017.
In addition to writing, Callan also speaks at writing conferences and teaches writing workshops in Texas and Mexico. 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.