1775 looks like it was an interesting year in demonology and magic.
This book was published with a "DO NOT TOUCH" warning on its cover. The Declaration of Independence was signed less than a year later. Connect the dots, people.
The full Latin title of Compendium rarissimum totius Artis Magicae sistematisatae per celeberrimos Artis hujus Magistros, roughly translates to "A rare summary of the entire Magical Art by the most famous Masters of this Art". With a title page adorned with skeletons and the warning of Noli me tangere (Do not touch me), one quickly gets a sense of the dark oddities lurking inside its pages. The bulk of the illustrations depict a varied bestiary of grotesque demonic creatures up to all sorts of appropriately demonic activities, such as chewing down on severed legs, spitting fire and snakes from genitalia, and parading around decapitated heads on sticks. In additon there seem also to be pictures relating to necromancy, the act of communicating with the dead in order to gain information about, and possibly control, the future. Written in German and Latin the book has been dated to around 1775, although it seems the unknown author tried to pass it off as an older relic, mentioning the year 1057 in the title page.