A history of ideas that changed the way large groups are addressed.
Brenner begins with Gustave Le Bon and crowd psychology, tracing how those ideas were taken up by politics, advertising and public communication during the twentieth century.
A central section is devoted to Edward Bernays, before the book moves through Walter Lippmann, media filters, marketing and digital platforms into the present.
The book explicitly says it is not a manual for manipulating other people. Its stated aim is the opposite: to make the mechanisms visible so they can be recognised when they are used around us.
The final chapters move from historical reconstruction to practical recognition, covering signs of manipulation, mental hygiene, positive influence and vigilance in the twenty-first century.
The work was created in collaboration with Influenza Mentale and published by Influenza Mentale Edizioni in 2026.