Ι have read the first book and I want to read the others as well in english but I am from Greece. I speak fluently english but I am not sure I can manage it... Can anyone non english tell me if it is an easy book to read?

I felt the same way that u do, and at first I wasn't sure if I could read the other books. Yet, the other boeken are just as the first one door language. There might be some confusing parts, but mostly, the boeken are just great and simple. Hope you'll enjoy reading them! :)