Mathematical sciences have become an integral part of advanced technology in industry and government. Our philosophy of graduate education is that excellence in mathematical theory and computational science, combined with the relevance imposed by a problem-solving approach, provide the best basis for careers in the mathematical sciences in the 21st century. A unified academic home for the applied mathematical sciences is well suited to today's technological world in which problems often span several disciplines. The Stony Brook Department of Applied Mathematics and Statistics is the largest of the half-dozen applied mathematical sciences departments in the United States. In recent years, the department has granted about 12 Ph.D.'s, 30 M.S.'s and 100 B.S.'s annually. It offers Master's and doctoral degrees covering the applied mathematics, statistics, and operations research, as well as a general undergraduate major in applied mathematics. There are also interdisciplinary graduate concentrations in computational biology (joint with biology departments) and computational geometry (joint with Computer Science). The department has close working relations with faculty in Mathematics, Computer Science, Physics, Management, Engineering, Biology, and Medicine. The department's extensive research funding, including an NSF Vertically Integrated Grant in Research and Education (VIGRE), supports a dozen graduate Fellowships, 30 graduate research assistants, a dozen post-docs, conferences, and state of-the-art computing equipment. The University supports an additional 30 students as teaching assistants. Ten students are currently supported on industrial partnership contracts. The demand for our graduates in academia, governmental national labs, industrial research labs, and in finance and business has never been stronger.