Glen Singleton

• 101 cool science experiments
• 1001 Cool Freaky Facts
• 1001 cool school yard jokes : with Glen Singleton
• Freaky facts
• 101 Cool Science Experiments with Glen Singleton Cool Kit
• 1001 cool jokes with Glen Singleton
• 1001 cool riddles & tongue twisters
• 101 cool magic tricks
• 365 experimentos de ciencia
• 365 experimentos de ciencia
• 365 incredible science experiments
• 365 Science Experiments