| year of publication | ISBN | author(s) | title |
|---|---|---|---|
| 2008 | 978-0-9818669-0-1 | Amy K. C. S. Vanderbilt · Ray Etter | The Lean Proposal Quick Start Guide |
| '' | 978-0-9818669-1-8 | Amy K. C. S. Vanderbilt · Sabrina L. M. Vanderbilt | Negative Nine: The Early Math Series (Book 1) (Early Math (Trend Factor)) |
| '' | 978-0-9818669-2-5 | Amy K. C. S. Vanderbilt · Sabrina L. M. Vanderbilt | Zero, Zero Everywhere!: The Early Math Series (Book 2) |
| '' | 978-0-9818669-4-9 | Amy K. C. S. Vanderbilt · Ray Etter | Lean Proposal Development: The Lean Proposal Series (Book 2) |