I bought this book last year and am buying more copies this year as gifts. The language is clear, well presented, the subject matter too. I found the cover illustration very old fashioned and ordered the Usborne book of the same name as a back up, but I find the content of this little book super. I would think the content fine for children around 4 or 5+, but especially excellent for a new reader or a struggling reader of say around 7 yrs.
If you need a book only about Santa and presents, don't get this one, but if you're looking for a thoughtful, sensitive introduction to how Christians around the world celebrate Christmas, treat your little ones to this. Enjoy!!