The universal language of numbers has allowed individuals to transcend cultural differences and make collaborative efforts to comprehend the world mathematically. Though many of these mathematicians may never have met the predecessors who made their own work possible, their collective works form the foundations of mathematics as it is known today. The books in this series introduce students not only to the theories and formulas that form the basis of each field of mathematics, but to the individuals who dedicated their lives to pushing numerical boundaries. Detailed diagrams provide visual sum.