Title: A sad book.
Review: This book might be of interest for experienced woodcutters but is useless for an inexperienced person who wants to learn about chainsaws. The author does not define any of the dozens of technical terms he uses.As a retired professor of mathematics I am full of sympathy for people who have great difficulties with elementary notions of arithmetic and geometry. Dave Johnson is obviously one of those. One example among many : "Cubic inch displacement is the volume swept by the piston in a single full stroke. Basically, it is the diameter of the piston time the length of the stroke" (page 35). A good book editor should have protected the author from flaunting his shortcomings.
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