No need to write another review about this book, I have read it a million times (Goodreads says 4, but it is way more than that). I just wanted to mention this edition because it is a cool one. Well, if you love collecting books (and I guess many of you here do) it's great, other than that, there are not a lot of bonus contents (still, you get some cool stuff about your favourite house!).
This is the Slytherin edition and at the beginning, you get different stuff about this house. Like the characteristics, the ghost etc. There is also a list of important wizards and witches of this particular house. Plus, it is extremely pleasing to the eye.
I would like to have all the house editions because I really enjoy collecting Harry Potter books, but of course, I got the Slytherin one first.
I definitely recommend this edition, it would also make a great present (I’m actually giving one myself this year, but I won’t tell to whom just in case that person is reading. I don’t think so but you never know)