CGP Grey was a physics teacher before vecoming an educational YouTube creator and podcaster. Grey has been posting on YouTube since 12 August 2010. His more popular videos are "Grey Explains" a series of explanatory videos with subjects, including politics, geography, economics and British culture.
In addition to his YouTube content he is part of the digital creator community "Standard." He created and co-hosts the podcasts "Hello Internet" and "Cortex: Synaptic Transmissions."