The Electric Kool-Aid Acid Test is a nonfiction book written by Tom Wolfe, published in 1968, which chronicles the experiences of the Merry Pranksters, a group of counterculture figures who embraced psychedelic drugs and the burgeoning hippie movement. The book serves as a vivid representation of the counterculture movement in the 1960s, focusing on themes such as experimentation, community, and the quest for expanded consciousness.