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[Creeperopolis]

La Salute è in voi! was an early 1900s bomb-making handbook associated with the Galleanisti, followers of anarchist Luigi Galleani, particularly in the United States. Translated as "Health Is in You!" or "Salvation Is within You!", its anonymous authors advocated for impoverished workers to overcome their despair and commit to individual, revolutionary acts. The Italian-language handbook offered plain directions to give non-technical amateurs the means to build explosives. Though this technical content was already available in encyclopedias, applied chemistry books, and industrial sources, La Salute è in voi wrapped this content within a political manifesto. Its contents included a glossary, basic chemistry training, and safety procedures. Its authors were likely Galleani and his friend Ettore Molinari, a chemist and anarchist.

The handbook was first advertised in Galleani's Cronaca Sovversiva, an anarchist newspaper, read by his American followers, in 1906. American police and historians would use the handbook to profile anarchists and imply guilt by possession. A decade after its release, La Salute è in voi! figured prominently in the prosecution of the 1915 Bresci Circle failed bombing of New York City's St. Patrick's Cathedral, in which the case revolved around the anarchists' right to read. Ultimately, the idea of amateurs learning to make bombs from simple instructions was impractical, as the perpetrators of successful political bombings from this era had career backgrounds in explosives.