| Basiscursus Paint Shop Pro 7 | Karin Oost | Academic Service |
| Seniorengids Digitale Fotografie | Karin Oost | Academic Service |
| BASISCURSUS INTERNET | Karin Oost | Sdu Uitgevers |
| Basiscursus Internet | Karin Oost | Academic Service |
| Internet Gerelateerd | Karin Oost | Addison Wesley |
| Basiscursus E-Commerce | Karin Oost | Academic Service Informatica |
| Basiscursus Internet, 2e | Karin Oost | Sdu Uitgevers |
| Adobe Photoshop Elements 3 | Karin Oost | Sams |
| Adobe Photoshop Elements 2.0 | Karin Oost |
