This was a cute, cosy read which put a smile on my face. It's exactly the story you imagine when you read the title and it's a whole lot of fun. 

The book is written with 25 chapters so you can choose to read it as an advent calendar, but honestly I personally recommend bingeing it in one sitting (I did read it in two but only due to the need to sleep!). It's short and reads fast. 

I believe in Iceland there's a tradition of families giving and receiving new books on Christmas Eve and cosying up to read them with some hot chocolate. This would be the perfect book to choose.