The commonalities of Douglas Walton's Slippery Slope Arguments and James Davies's Ways of Thinking are obvious: both are written by Canadian philosophers; both lie within the broad field of informal logic; and both make appeals in support of dialogical reasoning. But there the similarities end. The former is the work of a prolific author writing a treatise focussing narrowly on one topic within informal logic; the latter is the product of a newcomer to book-writing, and his is a textbook intended (...) for beginning students. (shrink)