| title | ISBN-13 (ISBN-10) | year of publica- tion | other author(s) |
|---|---|---|---|
| The Advice Business: Essential Tools and Models for Management Consulting | 978-0-13-030373-8 (0-13-030373-9) | 2003 | Charles J. Fombrun |
| What Happens Now?: Reinvent Yourself as a Leader Before Your Business Outruns You | 978-1-59079-453-1 (1-59079-453-2) | 2018 | John Hillen |