The document discusses 'perpetuity science,' which encompasses methodologies for building, selling, and buying perpetuities within investment banking. Authored by Michael Herlache, it critiques traditional MBA curriculums and presents a paradigm shift towards understanding perpetuities as a core element in business and finance. The text serves as both a guide for aspiring investment bankers and an academic resource, outlining various strategies and frameworks related to financial modeling, deal structuring, and industry analysis.