For Christians looking to improve critical thinking skills, here is an accessible introduction to the study of logic as well as an in-depth treatment of the discipline from a professor with six academic degrees and over 30 years experience teaching. Questions for further reflection are included at the end of each chapter as well as helpful diagrams and charts for use in college and graduate-level classrooms. Vern Poythress has undertaken a radical recasting of the study of logic in this revolutionary work from a Christian worldview.