The new edition of The Many Worlds of Logic continues the author's quest to make logic easier for the student to understand and to provide instructors with an easier text to teach from. Longer chapters are broken down into shorter chapters so that instructors can more easily carve their own unique choice of material out of the book. The shorter, tighter chapters will also be easier for students to digest. The author has added chapters on the main topics in informal logic and critical thinking, for instructors who want to teach a course that blends critical thinking, informal logic and formal logic. With the variety of topics covered, The Many Worlds of Logic allows professors the flexibility to customize the flow and emphasis of their logic course by choosing the chapters they wish to cover.