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 provided plain directions to give untechnical 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 Ett