| title | ISBN-13 (ISBN-10) | year of publication |
|---|---|---|
| Rene Gnam's Direct Mail Workshop: 1001 Ideas Tips, Rulebreakers and Brainstormers for Improving Profits Fast | 978-0-13-636622-5 (0-13-636622-8) | 1989 |
| Rene Gnam's Direct Mail Workshop | 978-0-13-773433-7 (0-13-773433-6) | 1990 |
Ren Gunon · Rene Gonin · René Guénon · Reni Guinon · Ron Genini