The information is presented clearly and is useful for making a good impression in any setting. I got the book for reference after attending the author’s workshop at my university and I’ve found it useful as I made the transition from school to workplace. I think most people considering this already have good manners (if you care enough to seek this out), what you can expect to get out of this book is to know what’s acceptable/expected of you in professional/social settings. It’s likely some things in here will come to you naturally and other things you hadn’t thought of before. Just remember when you don’t follow good manners/etiquette in the workplace, people will judge you but won’t correct you for it, so you might be projecting behaviours that aren’t showing you to be professional you’re aiming to be.