Here is a delightful holiday book in Elsa Beskow's classic Peter and Lotta series.
The two children go to live in the country with Aunt Green, Aunt Brown,
Aunt Lavender, and Uncle Blue. As Christmas approaches, Peter and Lotta
discover all kinds of new surprises, but best one of all is when they
discover where Christmas presents come from. Is it from deep in the
forest, where the tallest fir trees grow? (Age 5–8)
Peter and Lotta's Christmas