Terence Tao, one of the world's great mathematicians, urges us to find empowerment in numbers in his new book Six Maths Essentials. Karmela Padavic-Callaghan is convinced. Fields Medalist Tao (Solving Mathematical Problems) explores six foundational concepts in mathematics—numbers, algebra, geometry, probability, analysis, and dynamics—in this stimulating primer.. Terence Tao is widely celebrated as the world’s greatest living mathematician.