Electric Kool-aid Acid Test[0] by Tom Wolfe is an interesting perspective on LSD as well. It starts with the main character, Ken Kesey, taking part in the CIA-run LSD experiments in Menlo Park. The book details his journey from straight-laced-not-even-alcohol to driving a psychedelic bus across the country and finishing with large-scale public acid trips -- all before LSD was criminalized.

[0]: http://www.amazon.com/The-Electric-Kool-Aid-Acid-Test/dp/031...

[Edit to fix run-on sentence]