I always found the pharmacology and safety sections to be the most informative, especially when trying psychedelics (and, more importantly, MDMA) for the first

I always found the pharmacology and safety sections to be the most informative, especially when trying psychedelics (and, more importantly, MDMA) for the first time. It taught me what to watch out for, what NOT to worry about, the role "set and setting" plays into your experience on almost every drug, etc.