Louis Wain from Life Science Library: The Mind: some of the images freaked me out as a kid (especially the art by William Kurelek).
As I got older, it was a foot in the door for me to try psychedelic chemicals. The book came out in 1964, and had a positive scientific slant that psychedelic chemicals may be a great tool. Coming across this in the thrall of the “Just Say No” era of unrelenting BS propaganda during 12 years of Republican repression drove an interesting wedge in my horse-blindered world (that, and listening to Cheech & Chong or certain acid rock artists) to wonder if such things were not as dangerous as they were framed.