A lovely collection of letters from Father Christmas ("aided" by JRRT) to Tolkien's children. The tone and content of the letters changes over time to reflect the children growing up, but there is some continuity in the stories of what FC and his elves etc get up to. Lovely illustrations too. Best of all, they prompted FC to write similar letters to my own son, with some similarities to these stories, but with additional characters, some personal to him.