The author, a teacher at NYU's Stern School of Business, has been teaching for over two decades and invites people to join their classes. They teach corporate finance, valuation, investment philosophies, and a new class on the corporate life cycle. The author's teaching style is old-fashioned, with a focus on providing a unifying narrative for the class. They believe in making the class material real and applicable to real-world situations. The author also offers short online courses on accounting, statistics, and finance, which are accessible for free on their webpage. These courses are designed to provide tools for data analysis and financial understanding. The author's teaching process is centered around the idea of making students think for themselves and learn to reason through problems. They also teach classes on investment philosophies, which cover different approaches to investing and encourage students to find the philosophy that best fits their financial profile and psychological makeup.