Good question! :-)
The HappyMe Journal is the US edition of The HappySelf Journal and both are published by HappySelf Ltd a UK based company. The US is the only region we sell our journal as The HappyMe Journal.
This edition is exactly the same inside and has been edited to reflect US English spellings.
Funnily enough HappyMe was one of the original names we had picked for our journal back when we started work on it in 2017 so it's nice to have it out with this name after all!