| year of publication | ISBN | author(s) | title |
|---|---|---|---|
| 2018 | 978-1-7326652-0-0 | Stan Phelps · Rosaria Cirillo Louwman | Yellow Goldfish: Nine Ways to Increase Happiness in Business to Drive Growth, Productivity, and Prosperity |
| 2019 | 978-1-7326652-8-6 | Stan Phelps · Evan Carroll | Purple Goldfish Workbook: 10 Ways to Attract Raving Customers |