| title | ISBN-13 | year of publica- tion | other author(s) |
|---|---|---|---|
| El código secreto del vendedor | 978-84-92921-89-8 | 2018 | IAN MILLS · MARK RIDLEY · TIM CHAPMAN |
| The Leader's Secret Code: The belief systems that distinguish winners | 978-1-912555-44-4 | 2019 | Ian Mills · Mark Ridley · Adam Pacifico |
| The Salesperson's Secret Code | 978-1-911498-00-1 | 2017 | Ian Mills · Mark Ridley · Tim Chapman |
| The Salesperson's Secret Code: The belief systems that distinguish winners | 978-1-911498-76-6 | 2017 | Ian Mills · Mark Ridley · Tim Chapman |
| Too Proud to Lead | 978-1-4729-7303-0 | 2019 | Dave Cobb · Philip Ayling |
B. L. · Ben Locker · Benno Laquer · Benno Löser · Bonnie Lasser
A & C Black · Empresa Activa · LID Publishing