IG Farben was a German pharmaceutical and chemical conglomerate that was split up in the post-war years. Bayer was part of this company, before emerging as a standalone company, despite their wartime activities. This book outlines the history of IG Farben, the companies under their control during World War II, and all of the atrocities that they participated in. Medical experimentation was one aspect of IG Farben horror, but they were also the architects of Zyklon B. I read this book for my final capstone project, and it was very informative and useful for that project.