To buy the British Edition atau American edition?... HELP!!!

I have read the UK edition of harry potter about one hundred times. We are Australian.

My brother now wants to read them. he is 11 years old and I want to buy him a boxed set. The childrens edition boxed set is white and (i believe) makes the book look boring.

I have found an American Edition boxed set and the artwork on the book covers and the box looks fantastic and will really draw the attention of an 11 tahun old.

I know to not judge a book sejak its cover but an 11 tahun old doesnt think the same way.

My biggest issue is the difference between the books. Has anyone who is not american found any confusion between the editions. I want my brother to enjoy the buku as much as i do but i am concernced about the difference in the editions.

I know words are slightly different but is the keseluruhan effect different?

please help...