A beautiful endpaper is a lovely entrance into (and exit from) the other world that is a book.
The Christmas Tree Tangle has swirls of blue and green on very textured watercolour paper. Brian Wildsmith's A Christmas Story has gold endpapers - very special. A Gift From Saint Nicolas has a flurry of snowflakes on a pinky grey ground, and Silent Night has gold stars on a deep blue sky. It's nice to pause on the endpaper for a moment when reading to children....
The Christmas Tree Tangle is by Margaret Mahy, illustrated by Anthony Kerins, published by Puffin.
A Christmas Story by Brian Wildsmith is Oxford University Press
A Gift From Saint Nicholas by Dorothea Lachner, illustrated by Maja Dusikova is by North-South Books
Silent Night - Carols For Children with embroideries by Belinda Downse is by Methuen