This book is indeed a solid reference on a whole new approach to debugging, and I recommend it to every professional programmer.
I just wish they did a better revision work before publishing it, as scarcely past the third chapter you will have already ran into half a dozen bizarre errors. Misplaced or missing words are just the beginning; wait until you run into the misplaced paragraphs...
None of the errors take away this book's value, but thet are sort of a black eye in an otherwise beautiful figure.
