Here are some resources where you can learn more about Furthur, the Merry Pranksters, and Ken Kesey.
Furthur and Furthur: Zane Kesey talks about his father’s famous bus, the Dead and the Prankster legacy, Jason Johnson, Eugene Register-Guard
Magic Trip: Ken Kesey’s Search for a Kool Place, a film by Alex Gibney and Alison Ellwood; Zane Kesey, Producer
The Electric Kool-Aid Acid Test, Tom Wolfe