I'm building a list of the most highly regarded non-fiction books about LSD culture. I was a teenager when acid arrived in Australia in the '60's and recall the first trip I ever had in 1975 (a black dot). Over time my ability to score has slowly faded like most of my contacts, but I'm still keen on filling the gaps in what I think I already know on the subject. There are countless references on the web, but I'd still prefer a couple of 'go-to' books to add to my collection that readers here might already own or could recommend. The authors I have (Shulgin, Connell-Clarke, Letcher, McKenna(s) and others) are great references in their particular fields. but I can't seem to find much about the chemists and families who produced LSD prior to and since it's prohibition. Heads, by Jesse Jarnow seems like a close fit for the American experience, but there must be other titles out there that tell how LSD culture flourished elsewhere in the world, and about the movers and shakers who turned so many seekers on. Suggestions?