ISBN 9781529344523For this book I've found many hardback versions. I have the one with ISBN 9781529344523. This hardback only has pink foiling in the spine. This one doesn't have that many deatils.
I've found another similar version, wich is the one with the ISBN 9781534457690, and I don't know wich difference there is. So I can't tell you any details about it.
ISBN 978-1-5344-5769-0The edition with the ISBN 978-1-5344-5769-0 has a black cover just like mine, but has silver foiling in the spine and a sword in the front like the owlcrate edition, but in silver, as you can see in the picture.
Picture from lauren.readsbooks
This book had 2 special editions. One made by Owlcrate, it has the ISBN 9781534494497. This edition has a BEAUTIFUL gold cover, with black details, like the sword at the front and the black details on the spine. The jacket looks like it has some different colous, but it looks almost the same, but the back of it has some art work from scarecrux. You can check some pictures of it here.
Picture from: Owlcrate
The last one is the Fairyloot edition. This one is relly similar to the one I have, with the pink foiled details on the spine, but the dust cover was different. they changed the colous, and the book had pink spayed edges too. The dust jacket even had some art work in the back made by monolimeart . one was really hard to find pictures, but check then here and here.
Picture from: Fairyloot