I won't disagree with AG, but I'll say this: Lessinger writes well. He in fact writes so well that it's easy to forget that what he's saying might actually be bad advice.
I liked the book because it - unlike virtually all other poker literature at the time this book was published - took care of writing about bluffs. But, because of it's purpose, it overdoes it. The categorization of bluffs is based on "how often do they work" vs. "difficulty." Both of these classifications are usefless without the "hi, how big is the pot and what pot odds
am I offering" question asked, but still.