Mr. Bliss: Tolkien’s Little-Known Children’s Book for His Own Kids, Lovingly Handwritten and Illustrated by the Author Himself

"J.R.R. Tolkien firmly believed that there is no such thing as writing “for children” and yet, unbeknownst to most, he joined the ranks of famous authors of literature for grown-ups who wrote little-known children’s books — including Mark Twain, Maya Angelou, James Joyce, Aldous Huxley, Virginia Woolf, and Gertrude Stein — and actually penned a book specifically for kids. He wrote Mr. Bliss (public library) for his own two children when they were small — much like the fairy tales E.E. Cummings wrote for his only daughter, Sylvia Plath’s verses for her kids, and the controversial story Faulkner penned for the daughter of the woman he’d later marry. Though it is unclear precisely when Tolkien created Mr. Bliss, the tale was inspired by his first car, which he purchased in 1932. It was published posthumously exactly fifty years later. Tolkien went on to use two of the character names from the book, Gaffer Gamgee and Boffin, in The Lord of the Rings."

see pages and read the article by Maria Popova​

Mr. Bliss: Tolkien’s Little-Known Children’s Book for His Own Kids, Lovingly Handwritten and Illustrated by the Author Himself – Brain Pickings