This book provides a good overview of air permitting and good explanations of many of the issues involved. I don't think it "...shows facility air quality managers, regulatory agency staff, and consultants how to prepare permit applications for Title V Federal Operating Permits or for New Source Review (NSR)or Prevention of Significant Deterioration (PSD) perrmits for new or modified sources of air pollutant emissions, and how to comply with permits obtained." The differences between different facilities and states are too great for one book to do all that. Most books providing advice about air permitting imagine the reader is working for some "Mega-firm" with a team of eager co-workers. They might prove more useful if they focused on the poor guy locked alone in a room with six inches of forms and a bad calculator. Still, Leonard knows his material and provides many useful insights into the permit process.He writes clearly, has organized his material well and does a better job with a huge topic than any other book I have found.