is to diversify learning opportunities, enhance employability, offer qualifications and stimulate innovation, for the benefit of learners and society. The intensity of integration with the world of work (which includes enterprise, civil society and the public sector) is manifested by a strong focus on application of learning. This approach involves combining phases of work and study, a concern for employability, cooperation with employers, the use of practice-relevant knowledge and use-inspired research. Examples of providers of professional higher education may include graduate colleges of architecture, business, journalism, law, library science, optometry, pharmacy, public policy, human medicine, professional engineering, podiatric medicine, scientific dentistry, K-12 education, and veterinary medicine. Funding of universities and colleges Sources of funds US colleges and universities receive their funds from many sources, including tuition, federal Title IV funds, state funds, and endowments. State government The major source of funding for public institutions of higher education is direct support from the state. The levels of state support roughly correlate with the population of the state. For example, with a population nearly 40 million, the state of California allocates more than $15 billion on higher education. At the other extreme, Wyoming allocates $384 million for its 570,000 citizens. Institutional donors and endowments Private giving supports both private and public institutions. Gifts come in two forms, current use and endowment. Both types of gifts are usually constrained according to a contract between the donor and the institution. Private institutions tend to be more reliant on private giving. Harvard University $40.9 billion University of Texas $30.88 billion Princeton University $25.9 billion At the other extreme, the HBCU Fayetteville State University, has an endowment of $22 million. Private philanthropy can be controversial. At the University of Maryland, Northrop Grumman has funded a cybersecurity concentration, designs the curriculum in cybersecurity, provides computers and pays some cost of a new dorm. At Ohio State, IBM partnered to teach big data analytics. Murray State University's engineering program was supported by computer companies. The College of Nanoscale Science and Engineering at State University of New York in Albany, received billions of dollars in private sector investment. Student costs and funding In 2016, average estimated annual student costs (excluding books) were $16,757 at public institutions, $43,065 at private nonprofit institutions, and $23,776 at private for-profit institutions. Between 2006 and 2016, prices at public colleges and universities rose 34 percent above inflation, and prices at private nonprofit institutions rose