| title | ISBN-13 (ISBN-10) | year of publica- tion | other author(s) |
|---|---|---|---|
| Build Your Business In 90 Minutes A Day | 978-0-85708-601-3 (0-85708-601-4) | 2015 | Martin Gladdish |
| The Botty Rules: Success Secrets for Business in the 21st Century | 978-0-9828590-2-5 (0-9828590-2-3) | 2011 | |