Burger's 4th edition of Heart of Mathematics builds on previous editions based on math appreciation and an emphasis on critical thinking. The text is noted for its readable writing style, broad range of topics, and presentation of the classic mathematical ideas in a fun and interesting way. Topic coverage of the text is more traditional "skill-drill topics" such as graph theory and algebra with an entirely new graph theory section and additional computational exercises to the end of each section. Furthermore, this edition offers an engaging and mind-opening experience for even your most math-phobic users. It's written for non-math, non-science-oriented majors and encouraging them to discover the mathematics inherent in the world around them. Infused throughout with the authors' humor and enthusiasm, "The Heart of Mathematics" introduces students to the most important and interesting ideas in mathematics while inspiring them to actively engage in mathematical thinking.