God Jul, by Aina Stenberg MasOlle Swedish, grew up in Stockholm, and created Sweden's Advent calendar in and did another 29 after that. She drew between 5000 and 6000 various designs for Christmas, Easter and New Year cards.
Elsa Beskow was the illustrator that shaped my taste I think. The books my mother had loved as a child in Sweden were passed on to me and I poured over every detail and loved them too. --- I too Elsa Beskow.