John McMahon
John McMahon has written at least 6 books. Their most popular book is The Good Detective with 3 saves with an average rating of -⭐. Their next book, Inside Man, is scheduled for release on .
 The Good Detective
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 A Good Kill
| 4 | 1 read | |
 The Qualified Sales Leader The Qualified Sales Leader: Proven Lessons from a Five Time CRO
| 4 | 1 read | |
 The Evil Men Do The Evil Men Do
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 Inside Man
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