Business school  A business school is a university-level institution that confers degrees in business administration or management. According to Kaplan, business schools are "educational institutions that specialize in teaching courses and programs related to business and/or management". Such a school can also be known as school of management, school of business administration, or colloquially b-school or biz school. A business school teaches topics such as accounting, administration, business analytics, strategy, economics, entrepreneurship, finance, human resource management, management science, management information systems, international business, logistics, marketing, organizational psychology, organizational behavior, public relations, research methods and real estate among others. There are several forms of business schools, including a school of business, business administration, and management. Kaplan classifies business schools along four Corners:   Common degrees are as follows. BCom, BA, BS, BBA (Bachelor of Business Administration), BBus (Bachelor of Business), BSBA, BAcc, BABA, BBS, BMOS and BBusSc (Bachelor of Business Science)  Some business schools structure their teaching around the use of case studies (i.e. the case method). Case studies have been used in Graduate and Undergraduate business education for nearly one hundred years. Business cases are historical descriptions of actual business situations. Typically, information is presented about a business firm's products, markets, competition, financial structure, sales volumes, management, employees and other factors influencing the firm's success. The length of a business case study may range from two or three pages to 30 pages, or more. Business schools often obtain case studies published by the Harvard Business School, INSEAD, London Business School, the Kellogg School of Management at Northwestern University, the Ross School of Business at the University of Michigan, the Richard Ivey School of Business at The University of Western Ontario, the Darden School at the University of Virginia, IESE, other academic institutions, or case clearing houses (such as The Case Centre). Harvard's most popular case studies include "Lincoln Electric Co." and "Google, Inc."  Students are expected to scrutinize the case study and prepare to discuss strategies and tactics that the firm should employ in the future. Three different methods have been used in business case teaching:  When Harvard Business School started operating in 1908, the faculty realized that there were no textbooks suitable for a graduate program in business. Their first solution to this problem involved interviewing leading practitioners of business and writing detailed accounts of what these managers were doing, based partly on the case method already in use at Harvard Law School.