I have read most editions of this book over the last ten or fifteen years. This continues to be the single best textbook on financial statement analysis I've ever come across. It's particularly strong at the intersection of valuation and accounting matters. Professor Penman gets to the bottom of everything. His writing is clear, his analysis thorough, he explains well. Where many accounting texts are detail-oriented, this is rooted in principles (the right approach to accounting); where many corporate finance texts are not concerned with the accounting, on the implicit or explicit understanding that it does not matter to valuation, Professor Penman reconciles the two, both in concept and in practical terms.
This is not an introductory text, though it starts at a basic level; in my view, anyone who has read and understood the entire book will have a deep, up-to-date understanding of financial statement analysis.