| year of publication | ISBN | author(s) | title |
|---|---|---|---|
| 1999 | 978-0-9671891-0-9 | Adi Pieper | The Easy Guide to Solar Electric |
| 2003 | 978-0-9671891-1-6 | Pieper Adi | The Easy Guide to Solar Electric: For Home Power Systems |
| '' | 978-0-9671891-2-3 | '' | The Easy Guide to Solar Electric Part II: Installation Manual |
| 2007 | 978-0-9671891-3-0 | Adi Pieper | Easy Guide To Solar Electric Part I: 3ED |