Can someone give more information about School of Rock blackboard? Who wrote it? Is there any information pertaining to this?
This diagram is based on Edward Tufte's third book called Visual Explanations: Images and Quantities, Evidence and Narrative
It is the first visually diagam how rock music has evolved over the last 50 years. Original link for image
This poster is $39 for an “archival paper” print, but it only goes up to 1978.
The contents of the School of Rock blackboard were transcribed like this;
There’s also an interesting site The Family Tree of Rock and Roll.
Jack Black explained on the Watt from Pedro podcast that the director, cast and crew filled it out. He wanted to make sure the interviewer, Mike Watt, knew that he had added in Watt's band, the Minutemen, because he is a huge fan.