2 books I recommend for anyone interested in the history of this stuff are "Acid Dreams" and "How to Change Your Mind". The latter is a bit more pop-sciency, an

2 books I recommend for anyone interested in the history of this stuff are "Acid Dreams" and "How to Change Your Mind". The latter is a bit more pop-sciency, and the former is probably more factually accurate (though who can say, it's a lot of he-said-she-said). For a fun read on the topic, "The Doors of Perception" is a classic.