Book excerpt: Building on Street Smarts, this study guide by Gregory Koukl will take you deeper, teaching you the strategies for productive conversations with those who challenge your convictions on a variety of issues. The focus is on revealing the fundamental flaws in common, current challenges to Christian beliefs and values. It then provides individual strategies to exploit those shortcomings by offering model questions and sample dialogues to help guide believers in genial, yet persuasive, conversations. Lessons are coordinated with the available Street Smarts Video Study, and both make an ideal resources for groups use.