This expanded sixth edition of the Angel/Porter text contains two additional chapters, "Graph Theory" and "Voting and Apportionment". This best-selling text balances solid mathematical coverage with a comprehensive overview of mathematical ideas as they relate to varied disciplines. This text provides an appreciation of mathematics, highlighting mathematical history, applications of mathematics to the arts and sciences across cultures and introduces students to the uses of technology in mathematics. It is an ideal book for students who require a general overview of mathematics, especially those majoring in the liberal arts, elementary education, the social sciences, business, nursing and allied health fields.