J. A. (2000). Informal logic: An overview. Informal Logic 20(2): 93–99. Woods, J. (2000). How Philosophical is Informal Logic? Informal Logic 20(2): 139–167. 2000 Textbooks Kahane, H. (1971). Logic and contemporary rhetoric: The use of reasoning in everyday life. Belmont: Wadsworth. Still in print as Johnson, R. H. & Blair, J. A. (1977). Logical self-defense. Toronto: McGraw-Hill Ryerson. US Edition. (2006). New York: Idebate Press. Fogelin, R.J. (1978). Understanding arguments: An introduction to informal logic''. New York: Harcourt, Brace, Jovanovich. Still in print as External links An Outline for Verbal Logic Logic