Individuals who wish to advance their mathematical knowledge beyond a bachelor’s degree can pursue graduate degrees at the master’s and doctoral levels. These programs provide students with an opportunity to obtain specialized knowledge in various mathematical areas, including algebra, calculus, geometry, logic and number theory. Many employers prefer that individuals hold a graduate degree in mathematics for positions in fields such as biostatistics and financial mathematics. A Master’s degree in Mathematics typically takes two years to complete, while a PhD can take four. Earning both degrees can also prepare individuals for teaching careers in higher education.