A minor nitpick: The pamphlet claims that LSD helped "cure" Alcoholics Anonymous founder Bill Wilson. That sounds doubtful. Alcoholism, even today, isn't yet a curable condition. Treatable, yes, but not curable in the sense of making alcoholics able to drink moderately and safely. That's why those who've managed to stay off alcohol often refer to themselves as being "in recovery."
Also, while I'm not a knee-jerk "Drugs are bad, mmkay" type, and agree that hallucinogens such as LSD do have therapeutic potential and research on them should be less prohibitive, I do think that works like this tend to gloss over the hazards of taking such drugs without medical supervision. Yes, it's true that the whole "LSD will make you think you can fly and jump to your death" bit is a silly myth based on a single incident, but there have been people who have suffered permanent psychological damage from taking psychedelics. This tends to be either denied or hand-waved by the "All drugs should be readily available to everyone, everywhere" advocates, every bit as much as the potential benefits of LSD are denied by the "Throw every drug user in jail" types.