"Eats, Shoots & Leaves" is not a grammar guide per se, as it doesn't really teach the basics of punctuation. Instead, it's a grammarians dream come true - an enjoyable and illuminating discussion of the history and importance of punctuation (Hmmmm, did I use that dash correctly?). Lovers of punctuation have been decrying the use of "netspeak" with no or minimal punctuation. Accordingly, Truss wrote this engaging book with the rallying cry: "Sticklers unite!" However, Truss does not simply attack the web; indeed, she asserts that text messaging and email have made reading more important than it has been of late. However, to paraphrase Bill Clinton, "It's the punctuation stupid!"
Truss's dry British wit (e.g., talking about wanting to marry the inventor of the colon) is used to great effect in her writing. And amusing vignettes are peppered through the text, including the introduction of the "interrobang" as well as the spread of the "Strukenwhite" virus. She even manages to make punctuation seem, well, sexy. If you've ever found yourself in a spirited debate about the Oxford comma (i.e., the second comma in the phrase "red, white, and blue"), then you'll likely enjoy this book.
Some reviewers have asserted that American readers may be a bit lost; however, Truss is careful about pointing out American versus British punctuation uses. I was never confused. Overall, this book is delightful - most highly recommended.