This is the 15th Anniversary special edition of Harry Potter and the half blood Prince.
Its the most prettiest edition of Harry Potter books I've ever seen. In the last pic you can see how other parts look like. its has over 650 pages and size of the book is larger than regular 19.8cm books. There is no yellowing or any stains/highlights.

Dive into the wizarding world with this copy of Harry Potter and the Half-Blood Prince. A must-have for any fan's collection. Grab your copy today!