- Carte audioMind MappingKam Knight
- Carte audioSpeed ReadingKam Knight
- Carte audioConcentrationKam Knight
- Carte audioSelf-Talk Your Way to SuccesKam Knight
- Carte audioTriple Your Reading, Memory, and Concentration in 30 MinutesKam Knight
- Carte audioThe Art and Science of VisualizationKam Knight
- Carte audioMemoryKam Knight
- Carte audioMind MapsKam Knight
- Carte audioSerie: Mental PerformanceKam Knight
- Carte audioGoal SettingKam Knight